{"id":"CVE-2026-57228","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57228","generatedAt":"2026-10-28T02:21:16.984Z","title":"Crafted SMTP traffic can trigger the out-of-bounds read and crash Suricata when decode-quoted-printable MIME decoding is enabled.","description":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.13 until 7.0.17, the SMTP MIME quoted-printable decoder in src/util-decode-mime.c can read one byte past a heap buffer when a quoted-printable escape sequence is split across traffic chunks and the following chunk contains exactly one byte. Crafted SMTP traffic can trigger the out-of-bounds read and crash Suricata when decode-quoted-printable MIME decoding is enabled. This issue is fixed in version 7.0.17.","published":"2026-09-18T21:17:01.000Z","lastModified":"2026-09-29T12:47:53.000Z","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:H/I:N/A:H"},"cwe":["CWE-125"],"affected":["oisf/suricata"],"epss":{"score":0.00423,"percentile":0.36321,"date":"2026-10-26","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 (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-09-29T13:45:04.000Z","detail":{"from":"8.2","score":"9.1","severity":"CRITICAL","fromSeverity":"HIGH"},"summary":"Now scored CVSS 9.1 CRITICAL (was 8.2)."}],"references":[{"url":"https://github.com/OISF/suricata/commit/19880f9d5bbe2b8f8e8867a577848dce2b532c86","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-7.0.17","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-qxm4-q7vx-7xj4","tags":["Mitigation","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://redmine.openinfosecfoundation.org/issues/8608","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57228","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."}