{"id":"CVE-2026-22264","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-22264","generatedAt":"2026-10-28T04:44:45.012Z","title":"Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet.","description":"Suricata is a network IDS, IPS and NSM engine. Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not run untrusted rulesets or run with less than 65536 signatures that can match on the same packet.","published":"2026-01-27T19:16:15.000Z","lastModified":"2026-06-17T10:19:40.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"},"cwe":["CWE-416"],"affected":["oisf/suricata"],"epss":{"score":0.00409,"percentile":0.34946,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5","tags":["Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://redmine.openinfosecfoundation.org/issues/8190","tags":["Permissions Required"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-22264","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}