msrc_cve-2025-2486
Vulnerability from csaf_microsoft
Published
2025-11-02 00:00
Modified
2025-12-16 01:35
Summary
UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu

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-2025-2486 UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-2486.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": "UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu",
    "tracking": {
      "current_release_date": "2025-12-16T01:35:27.000Z",
      "generator": {
        "date": "2025-12-16T09:01:16.971Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-2486",
      "initial_release_date": "2025-11-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-11-29T01:02:03.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-12-06T14:40:42.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        },
        {
          "date": "2025-12-07T01:39:29.000Z",
          "legacy_version": "3",
          "number": "3",
          "summary": "Information published."
        },
        {
          "date": "2025-12-11T01:39:49.000Z",
          "legacy_version": "4",
          "number": "4",
          "summary": "Information published."
        },
        {
          "date": "2025-12-16T01:35:27.000Z",
          "legacy_version": "5",
          "number": "5",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "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 edk2 20230301gitf80f052277c8-43",
                "product": {
                  "name": "cbl2 edk2 20230301gitf80f052277c8-43",
                  "product_id": "7"
                }
              },
              {
                "category": "product_version_range",
                "name": "azl3 edk2 20240524git3e722403cd16-10",
                "product": {
                  "name": "azl3 edk2 20240524git3e722403cd16-10",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "edk2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "cbl2 hvloader 1.0.1-14",
                "product": {
                  "name": "cbl2 hvloader 1.0.1-14",
                  "product_id": "6"
                }
              }
            ],
            "category": "product_name",
            "name": "hvloader"
          },
          {
            "category": "product_name",
            "name": "cbl2 qemu 6.2.0-26",
            "product": {
              "name": "cbl2 qemu 6.2.0-26",
              "product_id": "2"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 qemu 8.2.0-25",
            "product": {
              "name": "azl3 qemu 8.2.0-25",
              "product_id": "1"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 edk2 20230301gitf80f052277c8-43 as a component of CBL Mariner 2.0",
          "product_id": "17086-7"
        },
        "product_reference": "7",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 edk2 20240524git3e722403cd16-10 as a component of Azure Linux 3.0",
          "product_id": "17084-5"
        },
        "product_reference": "5",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 hvloader 1.0.1-14 as a component of CBL Mariner 2.0",
          "product_id": "17086-6"
        },
        "product_reference": "6",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 qemu 6.2.0-26 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 qemu 8.2.0-25 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-2486",
      "cwe": {
        "id": "CWE-489",
        "name": "Active Debug Code"
      },
      "flags": [
        {
          "label": "component_not_present",
          "product_ids": [
            "17086-2",
            "17084-1"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "canonical",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_affected": [
          "17086-7",
          "17084-5",
          "17086-6"
        ],
        "known_not_affected": [
          "17086-2",
          "17084-1"
        ],
        "under_investigation": [
          "17086-4",
          "17084-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-2486 UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-2486.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2025-11-29T01:02:03.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-7"
          ]
        },
        {
          "category": "none_available",
          "date": "2025-11-29T01:02:03.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-5"
          ]
        },
        {
          "category": "none_available",
          "date": "2025-11-29T01:02:03.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-6"
          ]
        }
      ],
      "title": "UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu"
    }
  ]
}


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