{"id":"CVE-2026-69781","title":"Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.","summary":"Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401"],"vendor":"microsoft","product":"windows_11_24h2","affected":["windows_11_24h2 < 10.0.26100.9445","windows_11_25h2 < 10.0.26200.9445","windows_11_26h1 < 10.0.28000.2954","windows_server_2025 < 10.0.26100.33438"],"patched":["windows_11_24h2 10.0.26100.9445","windows_11_25h2 10.0.26200.9445","windows_11_26h1 10.0.28000.2954","windows_server_2025 10.0.26100.33438"],"published":"2026-09-08","updated":"2026-09-10","sourceUpdated":"2026-09-10T17:49:41.580","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-69781","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69781","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T20:39:21.327952Z"},"epss":0.00506,"epssPercentile":0.42075,"ingestedAt":"2026-09-08T19:08:49.620Z","slug":"CVE-2026-69781","body":"## Overview\n\nMissing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.\n\n## Affected\n\n- `windows_11_24h2 < 10.0.26100.9445`\n- `windows_11_25h2 < 10.0.26200.9445`\n- `windows_11_26h1 < 10.0.28000.2954`\n- `windows_server_2025 < 10.0.26100.33438`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_24h2 10.0.26100.9445`\n- `windows_11_25h2 10.0.26200.9445`\n- `windows_11_26h1 10.0.28000.2954`\n- `windows_server_2025 10.0.26100.33438`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}