CVE-2026-22259: 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…

PriorityP344high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.51%

39.5th percentile

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).

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	suricata	< suricata 1:8.0.3-1 (forky)	suricata 1:8.0.3-1 (forky)
oisf	suricata	< 7.0.14	7.0.14
oisf	suricata	—	—
oisf	suricata	>= 0 < 1:7.0.10-1+deb13u3	1:7.0.10-1+deb13u3
oisf	suricata	>= 0 < 1:8.0.3-1	1:8.0.3-1
oisf	suricata	>= 8.0.0 < 8.0.3	8.0.3

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian7.5HIGH

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