CVE-2026-22264

HIGH

Oisf Suricata < 7.0.14 - Use After Free

Title source: rule
STIX 2.1

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.

References (5)

Core 5

Scores

CVSS v3 7.4
EPSS 0.0009
EPSS Percentile 25.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (1)
oisf/suricata < 7.0.14
Published Jan 27, 2026
Tracked Since Feb 18, 2026