VDB
CVE-2026-22264
CVE-2026-22264
PUBLISHED
CVSS 9.100000381469727 CRITICAL
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.
EPSS 0.40% · 33.4th percentile
Risk Scores
CVSS 3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS Score
0.40%
33.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| oisf | suricata | 8.0.0, 0, 0 |
| OISF | suricata | *, * |
Timeline
- Jan 14, 2026 CVE Published
- Jan 14, 2026 PoC Published
- Jan 28, 2026 EPSS Score
- Jan 28, 2026 CVE Updated
- Jan 30, 2026 Security Advisory
- Jan 31, 2026 EPSS Score
- Feb 3, 2026 EPSS Score
- Feb 7, 2026 EPSS Score
- Feb 10, 2026 EPSS Score
- Feb 13, 2026 EPSS Score
- Feb 16, 2026 EPSS Score
- Feb 20, 2026 EPSS Score
References
- https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715 fix
- https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2 fix
- https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b fix
- https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5 url
- https://redmine.openinfosecfoundation.org/issues/8190 url
- https://suricata.io/2026/01/13/suricata-8-0-3-and-7-0-14-released/ advisory