cvelistv5 - cve-2025-12863

CVE-2025-12863 (GCVE-0-2025-12863)

Vulnerability from cvelistv5 – Published: 2025-11-07 20:59 – Updated: 2025-11-20 12:11

This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283

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{
  "containers": {
    "cna": {
      "providerMetadata": {
        "dateUpdated": "2025-11-20T12:11:37.790Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "rejectedReasons": [
        {
          "lang": "en",
          "value": "This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2025-12863",
    "datePublished": "2025-11-07T20:59:35.021Z",
    "dateRejected": "2025-11-20T12:11:37.790Z",
    "dateReserved": "2025-11-07T10:30:42.765Z",
    "dateUpdated": "2025-11-20T12:11:37.790Z",
    "state": "REJECTED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-12863\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2025-11-07T21:15:40.393\",\"lastModified\":\"2025-11-20T15:17:23.673\",\"vulnStatus\":\"Rejected\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Rejected reason: This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283\"}],\"metrics\":{},\"references\":[]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"rejectedReasons\": [{\"lang\": \"en\", \"value\": \"This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283\"}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2025-11-20T12:11:37.790Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-12863\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"state\": \"REJECTED\", \"assignerShortName\": \"redhat\", \"dateReserved\": \"2025-11-07T10:30:42.765Z\", \"datePublished\": \"2025-11-07T20:59:35.021Z\", \"dateUpdated\": \"2025-11-20T12:11:37.790Z\", \"dateRejected\": \"2025-11-20T12:11:37.790Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

MSRC_CVE-2025-12863

Vulnerability from csaf_microsoft - Published: 2025-11-02 00:00 - Updated: 2025-11-11 01:01

Summary

Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2

Notes

Additional Resources

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer

The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

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{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2025-12863 Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2 - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-12863.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2",
    "tracking": {
      "current_release_date": "2025-11-11T01:01:30.000Z",
      "generator": {
        "date": "2025-12-03T22:59:15.057Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-12863",
      "initial_release_date": "2025-11-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-11-11T01:01:30.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              },
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "cbl2 libxml2 2.10.4-9",
                "product": {
                  "name": "cbl2 libxml2 2.10.4-9",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version_range",
                "name": "azl3 libxml2 2.11.5-7",
                "product": {
                  "name": "azl3 libxml2 2.11.5-7",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "libxml2"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 libxml2 2.10.4-9 as a component of CBL Mariner 2.0",
          "product_id": "17086-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 libxml2 2.11.5-7 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-12863",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_affected": [
          "17086-2",
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-12863 Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2 - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-12863.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2025-11-11T01:01:30.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-2"
          ]
        },
        {
          "category": "none_available",
          "date": "2025-11-11T01:01:30.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "17086-2",
            "17084-1"
          ]
        }
      ],
      "title": "Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2"
    }
  ]
}

FKIE_CVE-2025-12863

Vulnerability from fkie_nvd - Published: 2025-11-07 21:15 - Updated: 2025-11-20 15:17

Severity ?

Summary

Rejected reason: This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283

References

	URL	Tags

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Rejected reason: This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283"
    }
  ],
  "id": "CVE-2025-12863",
  "lastModified": "2025-11-20T15:17:23.673",
  "metrics": {},
  "published": "2025-11-07T21:15:40.393",
  "references": [],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Rejected"
}

GHSA-9FWQ-22J4-XFWR

Vulnerability from github – Published: 2025-11-07 21:31 – Updated: 2025-11-07 21:31

Details

A flaw was found in the xmlSetTreeDoc() function of the libxml2 XML parsing library. This function is responsible for updating document pointers when XML nodes are moved between documents. Due to improper handling of namespace references, a namespace pointer may remain linked to a freed memory region when the original document is destroyed. As a result, subsequent operations that access the namespace can lead to a use-after-free condition, causing an application crash.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-12863"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-07T21:15:40Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in the xmlSetTreeDoc() function of the libxml2 XML parsing library. This function is responsible for updating document pointers when XML nodes are moved between documents. Due to improper handling of namespace references, a namespace pointer may remain linked to a freed memory region when the original document is destroyed. As a result, subsequent operations that access the namespace can lead to a use-after-free condition, causing an application crash.",
  "id": "GHSA-9fwq-22j4-xfwr",
  "modified": "2025-11-07T21:31:21Z",
  "published": "2025-11-07T21:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12863"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-12863"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2413323"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-12863 (GCVE-0-2025-12863)

MSRC_CVE-2025-12863

FKIE_CVE-2025-12863

GHSA-9FWQ-22J4-XFWR

Tags

Sightings

Nomenclature