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CVE-2026-22259

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CVE-2026-22259

Published: Jan 27, 2026

Modified: Jan 27, 2026

PUBLISHED

CVSS v3.1

7.5

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).

VendorProductVersions

OISF

suricata

affected
< 7.0.14
affected
>= 8.0.0, < 8.0.3

Weaknesses (CWE)

CWE-400
CWE-770

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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