High 7.5Published Jan 27, 2026

CVE-2026-22259Suricata is a network IDS, IPS and NSM engine.

Updated under an hour ago (2026-10-19 08:23 UTC)

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It affects oisf suricata. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for oisf suricata

Exploited in the last 30 days

Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default).

CVSS: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

oisf suricata oisf:suricata	before 7.0.14; from 8.0.0 before 8.0.3	NVD

References

https://github.com/OISF/suricata/commit/50cac2e2465ca211eabfa156623e585e9037bb7epatch
https://github.com/OISF/suricata/commit/63225d5f8ef64cc65164c0bb1800730842d54942patch
https://github.com/OISF/suricata/security/advisories/GHSA-878h-2x6v-84q9patch, vendor-advisory
https://redmine.openinfosecfoundation.org/issues/8181issue-tracking, permissions-required

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.