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CVE-2026-22264

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CVE-2026-22264

Published: Jan 27, 2026

Modified: Jan 28, 2026

PUBLISHED

CVSS v3.1

7.4

HIGH

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.

VendorProductVersions

OISF

suricata

affected
< 7.0.14
affected
>= 8.0.0, < 8.0.3

Weaknesses (CWE)

CWE-416

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

References

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