{"id":"CVE-2026-70575","title":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","summary":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"microsoft","product":"windows_11_23h2","affected":["windows_11_23h2 < 10.0.22631.7582","windows_11_24h2 < 10.0.26100.9445","windows_11_25h2 < 10.0.26200.9445","windows_11_26h1 < 10.0.28000.2954","windows_server_2022 < 10.0.20348.5622","windows_server_2025 < 10.0.26100.33438"],"patched":["windows_11_23h2 10.0.22631.7582","windows_11_24h2 10.0.26100.9445","windows_11_25h2 10.0.26200.9445","windows_11_26h1 10.0.28000.2954","windows_server_2022 10.0.20348.5622","windows_server_2025 10.0.26100.33438"],"published":"2026-09-08","updated":"2026-09-24","sourceUpdated":"2026-09-24T19:46:23.640","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70575","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70575","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00954,"epssPercentile":0.61184,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T20:39:07.866803Z"},"ingestedAt":"2026-09-08T19:08:49.623Z","slug":"CVE-2026-70575","body":"## Overview\n\nNull pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.\n\n## Affected\n\n- `windows_11_23h2 < 10.0.22631.7582`\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_2022 < 10.0.20348.5622`\n- `windows_server_2025 < 10.0.26100.33438`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_23h2 10.0.22631.7582`\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_2022 10.0.20348.5622`\n- `windows_server_2025 10.0.26100.33438`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}