MSRC_CVE-2025-21254

Vulnerability from csaf_microsoft - Published: 2025-02-11 08:00 - Updated: 2025-02-11 08:00
Summary
Internet Connection Sharing (ICS) Denial of Service Vulnerability
Severity
Important
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.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CWE-125 - Out-of-bounds Read
Vendor Fix 10.0.17763.6893:Security Update:https://support.microsoft.com/help/5052000 https://support.microsoft.com/help/5052000
Vendor Fix 10.0.20348.3207:Security Update:https://support.microsoft.com/help/5051979 https://support.microsoft.com/help/5051979
Vendor Fix 10.0.20348.3148:SecurityHotpatchUpdate:https://support.microsoft.com/help/5052106 https://support.microsoft.com/help/5052106
Vendor Fix 10.0.19044.5487:Security Update:https://support.microsoft.com/help/5051974 https://support.microsoft.com/help/5051974
Vendor Fix 10.0.22621.4890:Security Update:https://support.microsoft.com/help/5051989 https://support.microsoft.com/help/5051989
Vendor Fix 10.0.19045.5487:Security Update:https://support.microsoft.com/help/5051974 https://support.microsoft.com/help/5051974
Vendor Fix 10.0.26100.3194:Security Update:https://support.microsoft.com/help/5051987 https://support.microsoft.com/help/5051987
Vendor Fix 10.0.26100.3107:SecurityHotpatchUpdate:https://support.microsoft.com/help/5052105 https://support.microsoft.com/help/5052105
Vendor Fix 10.0.22631.4890:Security Update:https://support.microsoft.com/help/5051989 https://support.microsoft.com/help/5051989
Vendor Fix 10.0.25398.1425:Security Update:https://support.microsoft.com/help/5051980 https://support.microsoft.com/help/5051980
Vendor Fix 10.0.14393.7785:Security Update:https://support.microsoft.com/help/5052006 https://support.microsoft.com/help/5052006
Acknowledgments
bee13oy with <a href="https://www.cyberkl.com/">Cyber Kunlun Lab</a>

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          "12",
          "13",
          "14",
          "15",
          "16",
          "17",
          "18",
          "19",
          "20",
          "21",
          "22",
          "23",
          "24",
          "25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-21254 Internet Connection Sharing (ICS) Denial of Service Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21254"
        },
        {
          "category": "self",
          "summary": "CVE-2025-21254 Internet Connection Sharing (ICS) Denial of Service Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-21254.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.17763.6893:Security Update:https://support.microsoft.com/help/5052000",
          "product_ids": [
            "21",
            "20",
            "19",
            "18"
          ],
          "url": "https://support.microsoft.com/help/5052000"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.20348.3207:Security Update:https://support.microsoft.com/help/5051979",
          "product_ids": [
            "17",
            "16"
          ],
          "url": "https://support.microsoft.com/help/5051979"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.20348.3148:SecurityHotpatchUpdate:https://support.microsoft.com/help/5052106",
          "product_ids": [
            "17",
            "16"
          ],
          "url": "https://support.microsoft.com/help/5052106"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.19044.5487:Security Update:https://support.microsoft.com/help/5051974",
          "product_ids": [
            "15",
            "14",
            "13"
          ],
          "url": "https://support.microsoft.com/help/5051974"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.22621.4890:Security Update:https://support.microsoft.com/help/5051989",
          "product_ids": [
            "12",
            "11"
          ],
          "url": "https://support.microsoft.com/help/5051989"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.19045.5487:Security Update:https://support.microsoft.com/help/5051974",
          "product_ids": [
            "10",
            "9",
            "8"
          ],
          "url": "https://support.microsoft.com/help/5051974"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.26100.3194:Security Update:https://support.microsoft.com/help/5051987",
          "product_ids": [
            "1",
            "4",
            "3",
            "2"
          ],
          "url": "https://support.microsoft.com/help/5051987"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.26100.3107:SecurityHotpatchUpdate:https://support.microsoft.com/help/5052105",
          "product_ids": [
            "1",
            "4",
            "3",
            "2"
          ],
          "url": "https://support.microsoft.com/help/5052105"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.22631.4890:Security Update:https://support.microsoft.com/help/5051989",
          "product_ids": [
            "7",
            "6"
          ],
          "url": "https://support.microsoft.com/help/5051989"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.25398.1425:Security Update:https://support.microsoft.com/help/5051980",
          "product_ids": [
            "5"
          ],
          "url": "https://support.microsoft.com/help/5051980"
        },
        {
          "category": "vendor_fix",
          "date": "2025-02-11T08:00:00.000Z",
          "details": "10.0.14393.7785:Security Update:https://support.microsoft.com/help/5052006",
          "product_ids": [
            "24",
            "23",
            "25",
            "22"
          ],
          "url": "https://support.microsoft.com/help/5052006"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.7,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Denial of Service"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Internet Connection Sharing (ICS) Denial of Service Vulnerability"
    }
  ]
}


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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.


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Detection rules are retrieved from Rulezet.

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