Detections
Analytics
CVE-2026-22259
high
Description
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).
References
https://redmine.openinfosecfoundation.org/issues/8181
https://github.com/OISF/suricata/security/advisories/GHSA-878h-2x6v-84q9
https://github.com/OISF/suricata/commit/63225d5f8ef64cc65164c0bb1800730842d54942
https://github.com/OISF/suricata/commit/50cac2e2465ca211eabfa156623e585e9037bb7e