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).
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 30 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*

Tue, 27 Jan 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Oisf
Oisf suricata
Vendors & Products Oisf
Oisf suricata

Tue, 27 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
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).
Title Suricata dnp3: unbounded transaction growth
Weaknesses CWE-400
CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-27T18:16:55.422Z

Reserved: 2026-01-07T05:19:12.922Z

Link: CVE-2026-22259

cve-icon Vulnrichment

Updated: 2026-01-27T18:16:50.763Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-27T17:16:12.407

Modified: 2026-01-30T20:01:49.137

Link: CVE-2026-22259

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-27T20:16:32Z

Weaknesses