CVEvulnerability
CVE-2026-22264
9.1 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-01-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
- CVSS 3.1 ([email protected])
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Weaknesses
- CWE-416
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.
Affected configurations
• oisf suricata (< 7.0.14)
• oisf suricata (>= 8.0.0 < 8.0.3)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715 Patch
- https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2 Patch
- https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b Patch
- https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5 Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8190 Permissions Required