CVE-2021-2109 (GCVE-0-2021-2109)

Vulnerability from cvelistv5 – Published: 2021-01-20 14:50 – Updated: 2024-09-26 18:16
VLAI Previdian
Summary
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-26 18:11 UTC
CWE
  • Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server.
Impacted products
Vendor Product Version
Oracle Corporation WebLogic Server Affected: 10.3.6.0.0
Affected: 12.1.3.0.0
Affected: 12.2.1.3.0
Affected: 12.2.1.4.0
Affected: 14.1.1.0.0
Create a notification for this product.
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2021-2109

Status: Confirmed

Status Updated: 2026-08-15 02:00 CEST

Exploited: Yes


Timestamps
First Seen: 2026-08-15
Asserted: 2026-08-15

Scope
Notes: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are... | Affected: Oracle / WebLogic Server | CVSS: 7.2 (HIGH) | EPSS: 0.70447 | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian


Details
Feed Previdian (previdian.com)
Title Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are...
Cve Id CVE-2021-2109
Vendor Oracle
Ghsa Id None
Product WebLogic Server
Added Date 2026-08-15T00:00:00.000Z
Cvss Score 7.2
Epss Score 0.70447
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99372
Used In Malware unknown
Vulnerability Id CVE-2021-2109
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

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

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              "ID": "CVE-2021-2109",
              "STATE": "PUBLIC"
            },
            "affects": {
              "vendor": {
                "vendor_data": [
                  {
                    "product": {
                      "product_data": [
                        {
                          "product_name": "WebLogic Server",
                          "version": {
                            "version_data": [
                              {
                                "version_affected": "=",
                                "version_value": "10.3.6.0.0"
                              },
                              {
                                "version_affected": "=",
                                "version_value": "12.1.3.0.0"
                              },
                              {
                                "version_affected": "=",
                                "version_value": "12.2.1.3.0"
                              },
                              {
                                "version_affected": "=",
                                "version_value": "12.2.1.4.0"
                              },
                              {
                                "version_affected": "=",
                                "version_value": "14.1.1.0.0"
                              }
                            ]
                          }
                        }
                      ]
                    },
                    "vendor_name": "Oracle Corporation"
                  }
                ]
              }
            },
            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
              "description_data": [
                {
                  "lang": "eng",
                  "value": "Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)."
                }
              ]
            },
            "impact": {
              "cvss": {
                "baseScore": "7.2",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              }
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server.  Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server."
                    }
                  ]
                }
              ]
            },
            "references": {
              "reference_data": [
                {
                  "name": "https://www.oracle.com/security-alerts/cpujan2021.html",
                  "refsource": "MISC",
                  "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
                },
                {
                  "name": "http://packetstormsecurity.com/files/161053/Oracle-WebLogic-Server-14.1.1.0-Remote-Code-Execution.html",
                  "refsource": "MISC",
                  "url": "http://packetstormsecurity.com/files/161053/Oracle-WebLogic-Server-14.1.1.0-Remote-Code-Execution.html"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
        "assignerShortName": "oracle",
        "cveId": "CVE-2021-2109",
        "datePublished": "2021-01-20T14:50:11.000Z",
        "dateReserved": "2020-12-09T00:00:00.000Z",
        "dateUpdated": "2024-09-26T18:16:10.908Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.

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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.


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