{"id":"CVE-2026-69497","aliases":[],"cve":{"records":[{"id":"CVE-2026-69497","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-08-03T21:07:24.909Z","published":"2026-09-08T17:15:48.936Z","modified":"2026-10-30T21:54:13.937Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-30T21:54:13.937Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-08T20:48:13.565Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69497","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-401","description":"CWE-401: Missing Release of Memory after Effective Lifetime","source":"microsoft"}],"applicability":[{"source":"microsoft","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9245"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9245"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9245"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.20348.0","versionEndExcluding":"10.0.20348.5622"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.33438"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.33438"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9512"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9512"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9512"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.2.9200.0","versionEndExcluding":"6.2.9200.26349"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.2.9200.0","versionEndExcluding":"6.2.9200.26349"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.3.9600.0","versionEndExcluding":"6.3.9600.23398"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.3.9600.0","versionEndExcluding":"6.3.9600.23398"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-08T20:42:21.446747Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Windows DHCP Server Denial of Service Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Missing release of memory after effective lifetime in Windows DHCP Server allows an authorized attacker to deny service over a network.","score":6.5,"severity":"medium","published":"2026-09-08T17:15:48.936Z","modified":"2026-10-30T21:54:13.937Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Windows 10 Version 1607","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"10.0.14393.0","status":"affected","lessThan":"10.0.14393.9512","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69497"},{"vendor":"Microsoft","name":"Windows 10 Version 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Systems"],"versions":[{"version":"10.0.20348.0","status":"affected","lessThan":"10.0.20348.5622","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69497"},{"vendor":"Microsoft","name":"Windows Server 2025","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33438","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69497"},{"vendor":"Microsoft","name":"Windows Server 2025 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33438","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69497"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69497"],"sources":[{"name":"CVE","id":"CVE-2026-69497","modified":"2026-10-30T21:54:13.937Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-69497"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","score":6.5}],"sourceAffected":[],"observedAt":"2026-10-30T22:38:34.623Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:00:31.626Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-31T10:05:33.033Z","attemptedAt":"2026-10-31T10:05:33.033Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-31T10:05:33.314Z","attemptedAt":"2026-10-31T10:05:33.314Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-31T10:05:32.411Z","attemptedAt":"2026-10-31T10:05:32.411Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-31T10:05:33.130Z","attemptedAt":"2026-10-31T10:05:33.130Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-73525","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73525","modified":"Oct 30, 2026, 9:54:13 PM","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","checkedAt":"2026-10-31T10:05:32.411Z"},{"source":"NVD","id":"CVE-2026-69497","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69497","modified":"2026-09-24T23:17:59.363","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-31T10:05:33.033Z"},{"source":"FIRST EPSS","id":"CVE-2026-69497","url":"https://www.first.org/epss/","probability":0.01138,"percentile":0.66549,"date":"2026-10-30","checkedAt":"2026-10-31T10:05:33.130Z"},{"source":"GitHub Advisory Database","id":"GHSA-rcrr-7j2q-9vj3","url":"https://github.com/advisories/GHSA-rcrr-7j2q-9vj3","modified":"2026-09-08T18:32:49Z","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-31T10:05:33.314Z"}],"aiSummary":{"text":"A denial of service vulnerability in Windows DHCP Server affects certain versions of Windows 10 and Windows Server. An authorized attacker can deny service over a network due to missing release of memory after effective lifetime.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T02:21:01.133Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-69497"}]}}