{"id":"CVE-2026-33824","aliases":["EUVD-2026-22641","GHSA-q6qf-3m2m-xq4f"],"status":"published","title":"Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability","description":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.77377,"percentile":0.99564,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-415"],"published":"2026-04-14T16:58:45Z","modified":"2026-10-15T15:53:44Z","kev":{"date_added":"2026-08-18","due_date":"2026-08-21","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-08-18"},{"source":"kev","since":"2026-08-18"}],"exploits":[{"source":"pocgithub","id":"kaleth4/CVE-2026-33824","title":"kaleth4/CVE-2026-33824","date":"2026-04-21","url":"https://github.com/kaleth4/CVE-2026-33824"},{"source":"pocgithub","id":"EpSiLoNPoInTOrI/IKEV2-POC","title":"EpSiLoNPoInTOrI/IKEV2-POC","date":"2026-05-18","url":"https://github.com/EpSiLoNPoInTOrI/IKEV2-POC"}],"products":[{"vendor":"microsoft","product":"internet key exchange (ike) service extensions"},{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2022, 23h2 edition (server core installation)"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2022_23h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33824","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign/","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33824","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33824"},{"url":"https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign"},{"url":"https://github.com/advisories/GHSA-q6qf-3m2m-xq4f"}],"sources":{"cve":[{"id":"CVE-2026-33824","title":"Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability","description":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-04-14T16:58:45.469Z","modified":"2026-10-15T15:53:44.194Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:20:07.609948Z"}],"euvd":[{"id":"EUVD-2026-22641","description":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-04-14T16:58:45Z","modified":"2026-10-15T15:53:44Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"exploited_since":"2026-08-18","updated_at":"2026-11-02T17:00:12.42385Z"}],"ghsa":[{"id":"GHSA-q6qf-3m2m-xq4f","title":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","description":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-04-14T18:30:43Z","modified":"2026-08-18T18:31:46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T15:10:37.069016Z"}],"kev":[{"id":"CVE-2026-33824","title":"Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability","description":"Microsoft Internet Key Exchange (IKE) Service Extensions contains a double free vulnerability that could enable remote code execution.","cwes":["CWE-415"],"kev":{"date_added":"2026-08-18","due_date":"2026-08-21","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-33824","description":"Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-04-14T18:17:34.767Z","modified":"2026-09-25T18:17:25.133Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:12:14.748836Z"}]}}