CVE-2023-43000 (GCVE-0-2023-43000)

Vulnerability from cvelistv5 – Published: 2025-11-05 18:33 – Updated: 2026-09-21 19:03
VLAI CISA Previdian
Summary
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 05:01 UTC
CWE
  • Processing maliciously crafted web content may lead to memory corruption
  • CWE-416 - Use After Free
Impacted products
Vendor Product Version
Apple macOS Affected: unspecified , < 13.5 (custom)
Create a notification for this product.
Apple iOS and iPadOS Affected: unspecified , < 16.6 (custom)
Create a notification for this product.
Apple Safari Affected: unspecified , < 16.6 (custom)
Create a notification for this product.
Apple iOS and iPadOS Affected: unspecified , < 15.8.7 (custom)
Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2023-43000

Status: Confirmed

Status Updated: 2026-03-05 01:00 CET

Exploited: Yes


Timestamps
First Seen: 2026-03-05
Asserted: 2026-03-05

Scope
Notes: Apple Multiple products Use-After-Free Vulnerability | Affected: Apple / Multiple Products | Description: Apple macOS, iOS, iPadOS, and Safari 16.6 contain a use-after-free vulnerability due to the processing of maliciously crafted web content that may lead to memory corruption. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2026-03-26 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.apple.com/en-us/120324 ; https://support.apple.com/en-us/120331 ; https://support.apple.com/en-us/120338 ; https://nvd.nist.gov/vuln/detail/CVE-2023-43000

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev


Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2026-03-26
Date Added 2026-03-05
Vendorproject Apple
Vulnerabilityname Apple Multiple products Use-After-Free Vulnerability
Knownransomwarecampaignuse Unknown

References

Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2023-43000

Status: Confirmed

Status Updated: 2026-06-01 15:30 CEST

Exploited: Yes


Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01

Scope
Notes: A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari... | Affected: Apple / macOS, iOS and iPadOS, Safari | CVSS: 8.8 (HIGH) | EPSS: 0.03898 | Used in malware: unknown | Not yet in CISA KEV: False

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian


Details
Feed Previdian (previdian.com)
Title A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari...
Cve Id CVE-2023-43000
Vendor Apple
Ghsa Id GHSA-96FF-3RWM-724G
Product macOS, iOS and iPadOS, Safari
Added Date 2026-06-01T13:30:35.576Z
Cvss Score 8.8
Epss Score 0.03898
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.89933
Used In Malware unknown
Vulnerability Id CVE-2023-43000
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False

References

Created: 2026-10-02 09:09 CEST | Updated: 2026-10-02 09:09 CEST
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-43000",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-06T05:01:14.932410Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-03-05",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-21T19:03:00.605Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "third-party-advisory"
            ],
            "url": "https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "13.5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "16.6",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Safari",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "16.6",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "15.8.7",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Processing maliciously crafted web content may lead to memory corruption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-12T00:52:04.293Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "url": "https://support.apple.com/en-us/120331"
        },
        {
          "url": "https://support.apple.com/en-us/120338"
        },
        {
          "url": "https://support.apple.com/en-us/120324"
        },
        {
          "url": "https://support.apple.com/en-us/126632"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2023-43000",
    "datePublished": "2025-11-05T18:33:23.777Z",
    "dateReserved": "2023-09-14T19:05:11.491Z",
    "dateUpdated": "2026-09-21T19:03:00.605Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-43000",
      "date": "2026-10-02",
      "epss": "0.03898",
      "percentile": "0.89942"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "macOS",
                "vendor": "Apple",
                "versions": [
                  {
                    "lessThan": "13.5",
                    "status": "affected",
                    "version": "unspecified",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "product": "iOS and iPadOS",
                "vendor": "Apple",
                "versions": [
                  {
                    "lessThan": "16.6",
                    "status": "affected",
                    "version": "unspecified",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "product": "Safari",
                "vendor": "Apple",
                "versions": [
                  {
                    "lessThan": "16.6",
                    "status": "affected",
                    "version": "unspecified",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "product": "iOS and iPadOS",
                "vendor": "Apple",
                "versions": [
                  {
                    "lessThan": "15.8.7",
                    "status": "affected",
                    "version": "unspecified",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "product-security@apple.com"
          }
        ],
        "cisaActionDue": "2026-03-26",
        "cisaExploitAdd": "2026-03-05",
        "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
        "cisaVulnerabilityName": "Apple Multiple products Use-After-Free Vulnerability",
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB91291B-DB98-4E2A-BDA6-F9B5C48CDC6F",
                    "versionEndExcluding": "16.6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1E574928-4E49-45B0-AE6E-DF4D38897F67",
                    "versionEndExcluding": "15.8.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "33013784-1828-4402-81CF-2794D94A7C48",
                    "versionEndExcluding": "16.6",
                    "versionStartIncluding": "16.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D1E9DC1A-618A-4CAF-96C7-EC5BA2C1F617",
                    "versionEndExcluding": "15.8.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4C67BFEB-764A-4C07-A02A-117C6AFAAC6A",
                    "versionEndExcluding": "16.6",
                    "versionStartIncluding": "16.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7FB2CB0B-A635-4057-98B8-AF71F9CB0171",
                    "versionEndExcluding": "13.5",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption."
          }
        ],
        "id": "CVE-2023-43000",
        "lastModified": "2026-09-21T18:17:03.620",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2023-43000",
                "options": [
                  {
                    "exploitation": "active"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-06T05:01:14.932410Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-11-05T19:15:47.937",
        "references": [
          {
            "source": "product-security@apple.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://support.apple.com/en-us/120324"
          },
          {
            "source": "product-security@apple.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://support.apple.com/en-us/120331"
          },
          {
            "source": "product-security@apple.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://support.apple.com/en-us/120338"
          },
          {
            "source": "product-security@apple.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://support.apple.com/en-us/126632"
          },
          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit"
          },
          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "tags": [
              "US Government Resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000"
          }
        ],
        "sourceIdentifier": "product-security@apple.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-08-26T21:40:03+00:00",
      "cve": "CVE-2023-43000",
      "id": "CVE-2023-43000",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "412",
      "product_status:known_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "webkitgtk: Processing maliciously crafted web content may lead to memory corruption",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-43000.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "HIGH",
                  "baseScore": 8.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "REQUIRED",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-43000",
                    "options": [
                      {
                        "Exploitation": "active"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-03-06T05:01:14.932410Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              },
              {
                "other": {
                  "content": {
                    "dateAdded": "2026-03-05",
                    "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000"
                  },
                  "type": "kev"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-416",
                    "description": "CWE-416 Use After Free",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-11-05T18:52:52.612Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "third-party-advisory"
                ],
                "url": "https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit"
              },
              {
                "tags": [
                  "government-resource"
                ],
                "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "macOS",
              "vendor": "Apple",
              "versions": [
                {
                  "lessThan": "13.5",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            },
            {
              "product": "iOS and iPadOS",
              "vendor": "Apple",
              "versions": [
                {
                  "lessThan": "16.6",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            },
            {
              "product": "Safari",
              "vendor": "Apple",
              "versions": [
                {
                  "lessThan": "16.6",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            },
            {
              "product": "iOS and iPadOS",
              "vendor": "Apple",
              "versions": [
                {
                  "lessThan": "15.8.7",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "Processing maliciously crafted web content may lead to memory corruption",
                  "lang": "en"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-03-12T00:52:04.293Z",
            "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
            "shortName": "apple"
          },
          "references": [
            {
              "url": "https://support.apple.com/en-us/120331"
            },
            {
              "url": "https://support.apple.com/en-us/120338"
            },
            {
              "url": "https://support.apple.com/en-us/120324"
            },
            {
              "url": "https://support.apple.com/en-us/126632"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "assignerShortName": "apple",
        "cveId": "CVE-2023-43000",
        "datePublished": "2025-11-05T18:33:23.777Z",
        "dateReserved": "2023-09-14T19:05:11.491Z",
        "dateUpdated": "2026-09-21T19:03:00.605Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…