{"id":"CVE-2026-33824","title":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","summary":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-415"],"vendor":"microsoft","product":"windows_10_1607","affected":["windows_10_1607 < 10.0.14393.9060","windows_10_1809 < 10.0.17763.8644","windows_10_21h2 < 10.0.19044.7184","windows_10_22h2 < 10.0.19045.7184","windows_11_23h2 < 10.0.22631.6936","windows_11_24h2 < 10.0.26100.8246","windows_11_25h2 < 10.0.26200.8246","windows_11_26h1 < 10.0.28000.1836","windows_server_2016 < 10.0.14393.9060","windows_server_2019 < 10.0.17763.8644","windows_server_2022 < 10.0.20348.5020","windows_server_2022_23h2 < 10.0.25398.2274","windows_server_2025 < 10.0.26100.32690"],"patched":["windows_10_1607 10.0.14393.9060","windows_10_1809 10.0.17763.8644","windows_10_21h2 10.0.19044.7184","windows_10_22h2 10.0.19045.7184","windows_11_23h2 10.0.22631.6936","windows_11_24h2 10.0.26100.8246","windows_11_25h2 10.0.26200.8246","windows_11_26h1 10.0.28000.1836","windows_server_2016 10.0.14393.9060","windows_server_2019 10.0.17763.8644","windows_server_2022 10.0.20348.5020","windows_server_2022_23h2 10.0.25398.2274","windows_server_2025 10.0.26100.32690"],"published":"2026-04-14","updated":"2026-08-18","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-33824","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33824","label":"secure@microsoft.com"},{"url":"https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign/","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33824","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.72695,"epssPercentile":0.9942,"kev":true,"kevDateAdded":"2026-08-18","kevDueDate":"2026-08-21","kevRansomware":false,"exploited":true,"ingestedAt":"2026-08-18T18:21:28.685Z","exploits":{"github":2,"githubRepos":["https://github.com/kaleth4/CVE-2026-33824","https://github.com/EpSiLoNPoInTOrI/IKEV2-POC"],"checkedAt":"2026-09-23T07:13:59.389Z"},"exploitAvailable":true,"slug":"CVE-2026-33824","body":"## Overview\n\nDouble free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.\n\n## Affected\n\n- `windows_10_1607 < 10.0.14393.9060`\n- `windows_10_1809 < 10.0.17763.8644`\n- `windows_10_21h2 < 10.0.19044.7184`\n- `windows_10_22h2 < 10.0.19045.7184`\n- `windows_11_23h2 < 10.0.22631.6936`\n- `windows_11_24h2 < 10.0.26100.8246`\n- `windows_11_25h2 < 10.0.26200.8246`\n- `windows_11_26h1 < 10.0.28000.1836`\n- `windows_server_2016 < 10.0.14393.9060`\n- `windows_server_2019 < 10.0.17763.8644`\n- `windows_server_2022 < 10.0.20348.5020`\n- `windows_server_2022_23h2 < 10.0.25398.2274`\n- `windows_server_2025 < 10.0.26100.32690`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_10_1607 10.0.14393.9060`\n- `windows_10_1809 10.0.17763.8644`\n- `windows_10_21h2 10.0.19044.7184`\n- `windows_10_22h2 10.0.19045.7184`\n- `windows_11_23h2 10.0.22631.6936`\n- `windows_11_24h2 10.0.26100.8246`\n- `windows_11_25h2 10.0.26200.8246`\n- `windows_11_26h1 10.0.28000.1836`\n- `windows_server_2016 10.0.14393.9060`\n- `windows_server_2019 10.0.17763.8644`\n- `windows_server_2022 10.0.20348.5020`\n- `windows_server_2022_23h2 10.0.25398.2274`\n- `windows_server_2025 10.0.26100.32690`","depth":"hadal","depthScore":93,"depthScoreParts":{"impact":53.9,"likelihood":14.5,"exploitation":25,"ransomware":0},"changes":[{"seq":5115,"id":"CVE-2026-33824","ts":1788887248803,"field":"exploit_available","old":"false","new":"true"},{"seq":3998,"id":"CVE-2026-33824","ts":1788886364476,"field":"exploit_available","old":"true","new":"false"},{"seq":2811,"id":"CVE-2026-33824","ts":1788883031179,"field":"exploit_available","old":"false","new":"true"},{"seq":1840,"id":"CVE-2026-33824","ts":1788882434102,"field":"exploit_available","old":"true","new":"false"},{"seq":938,"id":"CVE-2026-33824","ts":1788881868120,"field":"exploit_available","old":"false","new":"true"},{"seq":172,"id":"CVE-2026-33824","ts":1787603620201,"field":"epss","old":"0.77898","new":"0.72695"},{"seq":136,"id":"CVE-2026-33824","ts":1787170715423,"field":"epss","old":"0.5585","new":"0.77898"}]}