{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-27479", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2025-02-26T14:42:05.977Z", "datePublished": "2025-04-08T17:23:20.139Z", "dateUpdated": "2026-02-13T19:32:37.059Z"}, "containers": {"cna": {"title": "Kerberos Key Distribution Proxy Service Denial of Service Vulnerability", "datePublic": "2025-04-08T07:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.17763.0", "versionEndExcluding": "10.0.17763.7136"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.17763.0", "versionEndExcluding": "10.0.17763.7136"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.20348.0", "versionEndExcluding": "10.0.20348.3453"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.26100.0", "versionEndExcluding": "10.0.26100.3775"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.25398.0", "versionEndExcluding": "10.0.25398.1551"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.26100.0", "versionEndExcluding": "10.0.26100.3775"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.14393.0", "versionEndExcluding": "10.0.14393.7969"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.14393.0", "versionEndExcluding": "10.0.14393.7969"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.2.9200.0", "versionEndExcluding": "6.2.9200.25423"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.2.9200.0", "versionEndExcluding": "6.2.9200.25423"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.3.9600.0", "versionEndExcluding": "6.3.9600.22523"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*", "versionStartIncluding": "6.3.9600.0", "versionEndExcluding": "6.3.9600.22523"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Windows Server 2012", "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.9200.0", "lessThan": "6.2.9200.25423", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.9200.0", "lessThan": "6.2.9200.25423", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2", "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.9600.0", "lessThan": "6.3.9600.22523", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.9600.0", "lessThan": "6.3.9600.22523", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.14393.0", "lessThan": "10.0.14393.7969", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.14393.0", "lessThan": "10.0.14393.7969", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.17763.0", "lessThan": "10.0.17763.7136", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.17763.0", "lessThan": "10.0.17763.7136", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2022", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.20348.0", "lessThan": "10.0.20348.3453", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2022, 23H2 Edition (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.25398.0", "lessThan": "10.0.25398.1551", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2025", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.26100.0", "lessThan": "10.0.26100.3775", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2025 (Server Core installation)", "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.26100.0", "lessThan": "10.0.26100.3775", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-410: Insufficient Resource Pool", "lang": "en-US", "type": "CWE", "cweId": "CWE-410"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-02-13T19:32:37.059Z"}, "references": [{"name": "Kerberos Key Distribution Proxy Service Denial of Service Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27479"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-08T20:11:13.377728Z", "id": "CVE-2025-27479", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-08T20:11:25.942Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-27479", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-08T20:11:13.377728Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-08T20:11:20.799Z"}}], "cna": {"title": "Kerberos Key Distribution Proxy Service Denial of Service Vulnerability", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C"}, "scenarios": [{"lang": "en-US", "value": "GENERAL"}]}], "affected": [{"vendor": "Microsoft", "product": "Windows Server 2019", "versions": [{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.7136", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "versions": [{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.7136", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2022", "versions": [{"status": "affected", "version": "10.0.20348.0", "lessThan": "10.0.20348.3453", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2025 (Server Core installation)", "versions": [{"status": "affected", "version": "10.0.26100.0", "lessThan": "10.0.26100.3775", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2022, 23H2 Edition (Server Core installation)", "versions": [{"status": "affected", "version": "10.0.25398.0", "lessThan": "10.0.25398.1551", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2025", "versions": [{"status": "affected", "version": "10.0.26100.0", "lessThan": "10.0.26100.3775", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2016", "versions": [{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7969", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2016 (Server Core installation)", "versions": [{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7969", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2012", "versions": [{"status": "affected", "version": "6.2.9200.0", "lessThan": "6.2.9200.25423", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2012 (Server Core installation)", "versions": [{"status": "affected", "version": "6.2.9200.0", "lessThan": "6.2.9200.25423", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2", "versions": [{"status": "affected", "version": "6.3.9600.0", "lessThan": "6.3.9600.22523", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "versions": [{"status": "affected", "version": "6.3.9600.0", "lessThan": "6.3.9600.22523", "versionType": "custom"}], "platforms": ["x64-based Systems"]}], "datePublic": "2025-04-08T07:00:00.000Z", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27479", "name": "Kerberos Key Distribution Proxy Service Denial of Service Vulnerability", "tags": ["vendor-advisory"]}], "descriptions": [{"lang": "en-US", "value": "Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network."}], "problemTypes": [{"descriptions": [{"lang": "en-US", "type": "CWE", "cweId": "CWE-410", "description": "CWE-410: Insufficient Resource Pool"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.17763.7136", "versionStartIncluding": "10.0.17763.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.17763.7136", "versionStartIncluding": "10.0.17763.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.20348.3453", "versionStartIncluding": "10.0.20348.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.26100.3775", "versionStartIncluding": "10.0.26100.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.25398.1551", "versionStartIncluding": "10.0.25398.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.26100.3775", "versionStartIncluding": "10.0.26100.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.14393.7969", "versionStartIncluding": "10.0.14393.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.0.14393.7969", "versionStartIncluding": "10.0.14393.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "6.2.9200.25423", "versionStartIncluding": "6.2.9200.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "6.2.9200.25423", "versionStartIncluding": "6.2.9200.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "6.3.9600.22523", "versionStartIncluding": "6.3.9600.0"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*", "vulnerable": true, "versionEndExcluding": "6.3.9600.22523", "versionStartIncluding": "6.3.9600.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2025-06-04T17:52:34.786Z"}}}, "cveMetadata": {"cveId": "CVE-2025-27479", "state": "PUBLISHED", "dateUpdated": "2025-06-04T17:52:34.786Z", "dateReserved": "2025-02-26T14:42:05.977Z", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "datePublished": "2025-04-08T17:23:20.139Z", "assignerShortName": "microsoft"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "matchCriteriaId": "6A232AB6-1EC5-44E7-AB75-0EB9A5A63259", "versionEndExcluding": "10.0.14393.7969", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "matchCriteriaId": "D2941A94-927C-4393-B2A0-4630F03B8B3A", "versionEndExcluding": "10.0.17763.7136", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "matchCriteriaId": "52706BEC-E3D6-4188-BB88-7078FE4AF970", "versionEndExcluding": "10.0.20348.3453", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*", "matchCriteriaId": "0DA8E1E4-0C78-4ADC-9490-4A608D8601FD", "versionEndExcluding": "10.0.25398.1551", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "matchCriteriaId": "99601356-2DEE-482F-BCBC-A5C7D92D2D74", "versionEndExcluding": "10.0.26100.3775", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network."}, {"lang": "es", "value": "Un grupo de recursos insuficiente en Windows Kerberos permite que un atacante no autorizado deniegue el servicio en una red."}], "id": "CVE-2025-27479", "lastModified": "2025-07-08T19:13:08.073", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "secure@microsoft.com", "type": "Secondary"}]}, "published": "2025-04-08T18:15:58.287", "references": [{"source": "secure@microsoft.com", "tags": ["Vendor Advisory"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27479"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-410"}], "source": "secure@microsoft.com", "type": "Secondary"}]}

{}

{}