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

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Workaround

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History

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 : Received

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

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

Link: CVE-2026-22259

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses