msrc_cve-2025-48040
Vulnerability from csaf_microsoft
Published
2025-09-02 00:00
Modified
2025-09-13 01:06
Summary
Malicious Key Exchange Messages may Lead to Excessive Resource Consumption

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-2025-48040 Malicious Key Exchange Messages may Lead to Excessive Resource Consumption - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-48040.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": "Malicious Key Exchange Messages may Lead to Excessive Resource Consumption",
    "tracking": {
      "current_release_date": "2025-09-13T01:06:10.000Z",
      "generator": {
        "date": "2025-10-20T03:48:57.044Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-48040",
      "initial_release_date": "2025-09-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-09-13T01:06:10.000Z",
          "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": "\u003ccbl2 erlang 25.3.2.21-2",
                "product": {
                  "name": "\u003ccbl2 erlang 25.3.2.21-2",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 erlang 25.3.2.21-2",
                "product": {
                  "name": "cbl2 erlang 25.3.2.21-2",
                  "product_id": "20323"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 erlang 26.2.5.13-1",
                "product": {
                  "name": "\u003cazl3 erlang 26.2.5.13-1",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
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                "product": {
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                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 erlang 25.3.2.21-4",
                "product": {
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                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 erlang 25.3.2.21-4",
                "product": {
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                  "product_id": "20541"
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              }
            ],
            "category": "product_name",
            "name": "erlang"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccbl2 erlang 25.3.2.21-2 as a component of CBL Mariner 2.0",
          "product_id": "17086-3"
        },
        "product_reference": "3",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
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        },
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        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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        },
        "product_reference": "2",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
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        },
        "product_reference": "20325",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
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        },
        "product_reference": "1",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
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          "product_id": "20541-17086"
        },
        "product_reference": "20541",
        "relates_to_product_reference": "17086"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-48040",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "general",
          "text": "EEF",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "20323-17086",
          "20325-17084",
          "20541-17086"
        ],
        "known_affected": [
          "17086-3",
          "17084-2",
          "17086-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-48040 Malicious Key Exchange Messages may Lead to Excessive Resource Consumption - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-48040.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-09-13T01:06:10.000Z",
          "details": "25.3.2.21-3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2025-09-13T01:06:10.000Z",
          "details": "26.2.5.15-1:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2025-09-13T01:06:10.000Z",
          "details": "25.3.2.21-4:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "title": "Malicious Key Exchange Messages may Lead to Excessive Resource Consumption"
    }
  ]
}


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