Buffer overflow in Oisf Suricata

CVE-2026-22262

Suricata is a network IDS, IPS and NSM engine. While saving a dataset a stack buffer is used to prepare the data. Prior to versions 8.0.3 and 7.0.14, if the data in the dataset is too large, this can result in a stack overflow. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not use rules with datasets `save` nor `state` options.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-22262?
CVE-2026-22262 is a medium-severity vulnerability in Oisf Suricata, classified under Stack-based Buffer Overflow. CVSS score: 5.9/10. Published 2026-01-27.
How severe is CVE-2026-22262?
Medium severity. CVSS v3 base score is 5.9 out of 10.