{"id":"CVE-2026-97830","title":"Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.","summary":"Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-415"],"vendor":"microsoft","product":"windows_11_23h2","affected":["windows_11_23h2 < 10.0.22631.7652","windows_11_24h2 < 10.0.26100.9711","windows_11_25h2 < 10.0.26200.9711","windows_11_26h1 < 10.0.28000.3231","windows_11_26h2 < 10.0.26300.9711","windows_server_2022 < 10.0.20348.5761","windows_server_2025 < 10.0.26100.33650"],"patched":["windows_11_23h2 10.0.22631.7652","windows_11_24h2 10.0.26100.9711","windows_11_25h2 10.0.26200.9711","windows_11_26h1 10.0.28000.3231","windows_11_26h2 10.0.26300.9711","windows_server_2022 10.0.20348.5761","windows_server_2025 10.0.26100.33650"],"published":"2026-10-13","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:19:55.197","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97830","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97830","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.01073,"epssPercentile":0.64739,"ingestedAt":"2026-10-13T19:43:29.316Z","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-13T22:05:14.174533Z"},"slug":"CVE-2026-97830","body":"## Overview\n\nDouble free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.\n\n## Affected\n\n- `windows_11_23h2 < 10.0.22631.7652`\n- `windows_11_24h2 < 10.0.26100.9711`\n- `windows_11_25h2 < 10.0.26200.9711`\n- `windows_11_26h1 < 10.0.28000.3231`\n- `windows_11_26h2 < 10.0.26300.9711`\n- `windows_server_2022 < 10.0.20348.5761`\n- `windows_server_2025 < 10.0.26100.33650`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_23h2 10.0.22631.7652`\n- `windows_11_24h2 10.0.26100.9711`\n- `windows_11_25h2 10.0.26200.9711`\n- `windows_11_26h1 10.0.28000.3231`\n- `windows_11_26h2 10.0.26300.9711`\n- `windows_server_2022 10.0.20348.5761`\n- `windows_server_2025 10.0.26100.33650`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}