{"id":"CVE-2026-125404","state":"PUBLISHED","title":"Ettercap through 0.8.4.1 Stack Buffer Overflow via WPA CCMP Decryption","description":"Ettercap through 0.8.4.1 contains an integer underflow in ccmp_decrypt() in src/ec_encryption_ccmp.c that subtracts the 8-byte CCMP trailer without checking minimum length. Attackers on a network whose WPA key is loaded can send a short crafted CCMP frame to overflow a stack buffer in the Ettercap process, which normally runs as root.","publishedAt":"2026-11-09T23:28:05.658Z","updatedAt":"2026-11-09T23:28:05.658Z","severity":{"score":7.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Ettercap ettercap"],"affected":[{"vendor":"Ettercap","product":"ettercap","packageURL":"pkg:github/Ettercap/ettercap","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.8.4.1","versionType":"custom"}],"repo":"https://github.com/Ettercap/ettercap"}],"references":["https://github.com/Ettercap/ettercap/security/advisories/GHSA-j37f-7jx3-rf8j","https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98","https://github.com/Ettercap/ettercap/pull/1330","https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_encryption_ccmp.c#L190-L203","https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-stack-buffer-overflow-via-wpa-ccmp-decryption"],"weaknesses":["CWE-191"],"ingestedAt":"2026-11-09T23:36:06.628Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/125xxx/CVE-2026-125404.json","commit":"b5e35fd13cceb3fc2d7ace24f43c95cd80e7dc5f","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-125404","state":"PUBLISHED","datePublished":"2026-11-09T23:28:05.658Z","dateUpdated":"2026-11-09T23:28:05.658Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-11-09T22:03:16.617Z"},"containers":{"cna":{"title":"Ettercap through 0.8.4.1 Stack Buffer Overflow via WPA CCMP Decryption","descriptions":[{"lang":"en","value":"Ettercap through 0.8.4.1 contains an integer underflow in ccmp_decrypt() in src/ec_encryption_ccmp.c that subtracts the 8-byte CCMP trailer without checking minimum length. 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