CVE-2026-22259
Suricata dnp3: unbounded transaction growth
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).
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
OISF
oss-projectaka suricata, libhtp, suricata-update
АО «НТЦ ИТ РОСА»
commercial·RU
Open Information Security Foundation
oss-projectaka ofis, libhtp, suricata
ООО "Айдеко Софтвер"
commercial·RUaka айде́ко софтвер, aidco software
and 1 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Impact
References
https://github.com/OISF/suricata/security/advisories/GHSA-878h-2x6v-84q9
github.com
https://github.com/OISF/suricata/commit/50cac2e2465ca211eabfa156623e585e9037bb7e
github.com
https://github.com/OISF/suricata/commit/63225d5f8ef64cc65164c0bb1800730842d54942
github.com
and 7 more references View all →
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