Common Weakness Enumeration

CWE-362

Allowed-with-Review

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Abstraction: Class · Status: Draft

API response cwe.mitre.org

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

3263 vulnerabilities reference this CWE, most recent first.

GHSA-W3HG-M9HJ-8HR8

Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.

Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-50460"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T18:17:51Z",
    "severity": "HIGH"
  },
  "details": "Concurrent execution using shared resource with improper synchronization (\u0027race condition\u0027) in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.",
  "id": "GHSA-w3hg-m9hj-8hr8",
  "modified": "2026-07-14T18:32:25Z",
  "published": "2026-07-14T18:32:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50460"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50460"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W3J5-Q8F2-3CQQ

Vulnerability from github – Published: 2022-05-14 01:10 – Updated: 2025-09-02 22:30
VLAI
Summary
Concurrent Execution using Shared Resource with Improper Synchronization in Apache Tomcat
Details

A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.0.0.M13"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-util"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0.M1"
            },
            {
              "fixed": "9.0.0.M14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.5.8"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-util"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.5.0"
            },
            {
              "fixed": "8.5.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-util"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0-RC1"
            },
            {
              "fixed": "8.0.41"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-util"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.0.75"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.tomcat:tomcat-util"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.16"
            },
            {
              "fixed": "6.0.50"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-8745"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-07-06T19:48:38Z",
    "nvd_published_at": "2017-08-10T22:29:00Z",
    "severity": "HIGH"
  },
  "details": "A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.",
  "id": "GHSA-w3j5-q8f2-3cqq",
  "modified": "2025-09-02T22:30:26Z",
  "published": "2022-05-14T01:10:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8745"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/143bb466cf96a89e791b7db5626055ea819dad89"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat/commit/16a57bc885e212839f1d717b94b01d154a36943a"
    },
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      "url": "https://github.com/apache/tomcat/commit/cbc9b18a845d3c8c053ac293dffda6c6c19dd92b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/tomcat80/commit/3dd2fec73e0de1edc1d3eb1c52a01255fdfc84e7"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:0455"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E"
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    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201705-09"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20180607-0002"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20200227165932/http://www.securityfocus.com/bid/94828"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20200517114357/http://www.securitytracker.com/id/1037432"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:0456"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:0935"
    },
    {
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      "url": "https://github.com/apache/tomcat"
    },
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      "url": "https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E"
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    },
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      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0457.html"
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      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0527.html"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3754"
    },
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      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3755"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Concurrent Execution using Shared Resource with Improper Synchronization in Apache Tomcat"
}

GHSA-W3MR-7987-GX2P

Vulnerability from github – Published: 2022-05-13 01:40 – Updated: 2022-05-13 01:40
VLAI
Details

A elevation of privilege vulnerability in the Android media framework (libgui). Product: Android. Versions: 7.0, 7.1.1, 7.1.2. Android ID: A-33004354.

Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2017-0727"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-08-09T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "A elevation of privilege vulnerability in the Android media framework (libgui). Product: Android. Versions: 7.0, 7.1.1, 7.1.2. Android ID: A-33004354.",
  "id": "GHSA-w3mr-7987-gx2p",
  "modified": "2022-05-13T01:40:34Z",
  "published": "2022-05-13T01:40:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0727"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2017-08-01"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100204"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W3QF-XQHV-QHM8

Vulnerability from github – Published: 2026-08-30 15:30 – Updated: 2026-08-30 15:30
VLAI
Details

A vulnerability was detected in vastsa FileCodeBox up to 2.3. This vulnerability affects the function update_file_usage of the file apps/base/views.py of the component Pickup Limit Handler. Performing a manipulation results in race condition. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2.5.0 is able to resolve this issue. The patch is named 8d7d856c62d73badd0797eb4daec8d2ff10a403a. Upgrading the affected component is recommended.

Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-82543"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-30T13:16:56Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was detected in vastsa FileCodeBox up to 2.3. This vulnerability affects the function update_file_usage of the file apps/base/views.py of the component Pickup Limit Handler. Performing a manipulation results in race condition. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2.5.0 is able to resolve this issue. The patch is named 8d7d856c62d73badd0797eb4daec8d2ff10a403a. Upgrading the affected component is recommended.",
  "id": "GHSA-w3qf-xqhv-qhm8",
  "modified": "2026-08-30T15:30:26Z",
  "published": "2026-08-30T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82543"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vastsa/FileCodeBox/issues/482"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vastsa/FileCodeBox/pull/487"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vastsa/FileCodeBox/commit/8d7d856c62d73badd0797eb4daec8d2ff10a403a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vastsa/FileCodeBox"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vastsa/FileCodeBox/releases/tag/v2.5.0"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-82543"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/891416"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/397060"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/397060/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-W3V4-V785-42QW

Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-77894"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-08T18:20:39Z",
    "severity": "HIGH"
  },
  "details": "Concurrent execution using shared resource with improper synchronization (\u0027race condition\u0027) in Windows Installer allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-w3v4-v785-42qw",
  "modified": "2026-09-08T18:33:21Z",
  "published": "2026-09-08T18:33:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77894"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77894"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W3WX-X8M4-P4QJ

Vulnerability from github – Published: 2022-05-14 03:17 – Updated: 2022-05-14 03:17
VLAI
Details

Race condition in kernel/events/core.c in the Linux kernel before 4.9.7 allows local users to gain privileges via a crafted application that makes concurrent perf_event_open system calls for moving a software group into a hardware context. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6786.

Severity
7.0 (High)
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2017-6001"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-02-18T21:59:00Z",
    "severity": "HIGH"
  },
  "details": "Race condition in kernel/events/core.c in the Linux kernel before 4.9.7 allows local users to gain privileges via a crafted application that makes concurrent perf_event_open system calls for moving a software group into a hardware context.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6786.",
  "id": "GHSA-w3wx-x8m4-p4qj",
  "modified": "2022-05-14T03:17:31Z",
  "published": "2022-05-14T03:17:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-6001"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/321027c1fe77f892f4ea07846aeae08cefbbb290"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1842"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2077"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2669"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:1854"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1422825"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/pixel/2017-11-01"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=321027c1fe77f892f4ea07846aeae08cefbbb290"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3791"
    },
    {
      "type": "WEB",
      "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/02/16/1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/96264"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W4CR-XJRM-VRC8

Vulnerability from github – Published: 2022-10-12 12:00 – Updated: 2025-01-03 00:31
VLAI
Details

Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-22035, CVE-2022-24504, CVE-2022-30198, CVE-2022-33634, CVE-2022-38000, CVE-2022-41081.

Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-38047"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-11T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-22035, CVE-2022-24504, CVE-2022-30198, CVE-2022-33634, CVE-2022-38000, CVE-2022-41081.",
  "id": "GHSA-w4cr-xjrm-vrc8",
  "modified": "2025-01-03T00:31:08Z",
  "published": "2022-10-12T12:00:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38047"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-38047"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38047"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W4CX-53Q5-R77W

Vulnerability from github – Published: 2022-05-04 00:00 – Updated: 2022-05-11 00:01
VLAI
Details

In aee driver, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06209201; Issue ID: ALPS06226345.

Severity
6.4 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-20091"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-05-03T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In aee driver, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06209201; Issue ID: ALPS06226345.",
  "id": "GHSA-w4cx-53q5-r77w",
  "modified": "2022-05-11T00:01:42Z",
  "published": "2022-05-04T00:00:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-20091"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/May-2022"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W4P3-W4VF-CWW2

Vulnerability from github – Published: 2026-07-27 21:31 – Updated: 2026-07-28 18:32
VLAI
Details

A race condition was addressed with improved state handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-64720"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-27T21:17:10Z",
    "severity": "CRITICAL"
  },
  "details": "A race condition was addressed with improved state handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.",
  "id": "GHSA-w4p3-w4vf-cww2",
  "modified": "2026-07-28T18:32:53Z",
  "published": "2026-07-27T21:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64720"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/128066"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/128067"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/128068"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/128069"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W4QM-QCX6-WMW8

Vulnerability from github – Published: 2026-07-28 15:32 – Updated: 2026-07-28 18:33
VLAI
Details

Accesses to the CMOS memory contents are done using an indirect IO port pair. Therefore Xen needs to cache the guest chosen index, and one of the usages of the index didn't take the necessary locking to avoid concurrent changes. As a result, a guest could change the index after it being checked, causing a subsequent out-of-bound read access to the contents of an array.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-62430"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-28T13:19:01Z",
    "severity": "HIGH"
  },
  "details": "Accesses to the CMOS memory contents are done using an indirect IO port\npair.  Therefore Xen needs to cache the guest chosen index, and one of\nthe usages of the index didn\u0027t take the necessary locking to avoid\nconcurrent changes.  As a result, a guest could change the index after\nit being checked, causing a subsequent out-of-bound read access to the\ncontents of an array.",
  "id": "GHSA-w4qm-qcx6-wmw8",
  "modified": "2026-07-28T18:33:02Z",
  "published": "2026-07-28T15:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62430"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xenproject.org/xsa/advisory-503.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/28/19"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-503.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation
Architecture and Design

In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.

Mitigation
Architecture and Design

Use thread-safe capabilities such as the data access abstraction in Spring.

Mitigation
Architecture and Design
  • Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
  • Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
Implementation

When using multithreading and operating on shared variables, only use thread-safe functions.

Mitigation
Implementation

Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.

Mitigation
Implementation

Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.

Mitigation
Implementation

Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.

Mitigation
Implementation

Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.

Mitigation
Implementation

Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.

Mitigation MIT-17
Architecture and Design Operation

Strategy: Environment Hardening

Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

CAPEC-26: Leveraging Race Conditions

The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.

CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions

This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.

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