Vulnerability Details 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 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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.8%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-22259
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cpe:2.3:a:oisf:suricata:-
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cpe:2.3:a:oisf:suricata:0.8.2
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cpe:2.3:a:oisf:suricata:1.0.0
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cpe:2.3:a:oisf:suricata:1.0.1
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cpe:2.3:a:oisf:suricata:1.0.2
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cpe:2.3:a:oisf:suricata:1.0.3
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cpe:2.3:a:oisf:suricata:1.0.4
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cpe:2.3:a:oisf:suricata:1.0.5
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cpe:2.3:a:oisf:suricata:1.1
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cpe:2.3:a:oisf:suricata:1.1.1
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cpe:2.3:a:oisf:suricata:1.2
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cpe:2.3:a:oisf:suricata:1.2.1
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cpe:2.3:a:oisf:suricata:1.3
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cpe:2.3:a:oisf:suricata:1.3.1
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cpe:2.3:a:oisf:suricata:1.3.2
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cpe:2.3:a:oisf:suricata:1.3.3
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cpe:2.3:a:oisf:suricata:1.3.4
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cpe:2.3:a:oisf:suricata:1.3.5
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cpe:2.3:a:oisf:suricata:1.3.6
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cpe:2.3:a:oisf:suricata:1.4
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cpe:2.3:a:oisf:suricata:1.4.1
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cpe:2.3:a:oisf:suricata:1.4.2
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cpe:2.3:a:oisf:suricata:1.4.3
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cpe:2.3:a:oisf:suricata:1.4.4
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cpe:2.3:a:oisf:suricata:1.4.5
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cpe:2.3:a:oisf:suricata:1.4.6
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cpe:2.3:a:oisf:suricata:1.4.7
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cpe:2.3:a:oisf:suricata:2.0
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cpe:2.3:a:oisf:suricata:2.0.1
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cpe:2.3:a:oisf:suricata:2.0.10
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cpe:2.3:a:oisf:suricata:2.0.11
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cpe:2.3:a:oisf:suricata:2.0.2
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cpe:2.3:a:oisf:suricata:2.0.3
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cpe:2.3:a:oisf:suricata:2.0.4
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cpe:2.3:a:oisf:suricata:2.0.5
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cpe:2.3:a:oisf:suricata:2.0.6
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cpe:2.3:a:oisf:suricata:2.0.7
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cpe:2.3:a:oisf:suricata:2.0.8
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cpe:2.3:a:oisf:suricata:2.0.9
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cpe:2.3:a:oisf:suricata:2.1
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cpe:2.3:a:oisf:suricata:3.0
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cpe:2.3:a:oisf:suricata:3.0.1
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cpe:2.3:a:oisf:suricata:3.0.2
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cpe:2.3:a:oisf:suricata:3.1
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cpe:2.3:a:oisf:suricata:3.1.1
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cpe:2.3:a:oisf:suricata:3.1.2
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cpe:2.3:a:oisf:suricata:3.1.3
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cpe:2.3:a:oisf:suricata:3.1.4
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cpe:2.3:a:oisf:suricata:3.2
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cpe:2.3:a:oisf:suricata:3.2.1
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cpe:2.3:a:oisf:suricata:3.2.2
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cpe:2.3:a:oisf:suricata:3.2.3
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cpe:2.3:a:oisf:suricata:3.2.4
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cpe:2.3:a:oisf:suricata:3.2.5
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cpe:2.3:a:oisf:suricata:4.0.0
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cpe:2.3:a:oisf:suricata:4.0.1
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cpe:2.3:a:oisf:suricata:4.0.2
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cpe:2.3:a:oisf:suricata:4.0.3
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cpe:2.3:a:oisf:suricata:4.0.4
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cpe:2.3:a:oisf:suricata:4.0.5
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cpe:2.3:a:oisf:suricata:4.0.6
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cpe:2.3:a:oisf:suricata:4.0.7
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cpe:2.3:a:oisf:suricata:4.1.0
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cpe:2.3:a:oisf:suricata:4.1.1
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cpe:2.3:a:oisf:suricata:4.1.10
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cpe:2.3:a:oisf:suricata:4.1.2
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cpe:2.3:a:oisf:suricata:4.1.3
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cpe:2.3:a:oisf:suricata:4.1.4
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cpe:2.3:a:oisf:suricata:4.1.5
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cpe:2.3:a:oisf:suricata:4.1.6
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cpe:2.3:a:oisf:suricata:4.1.7
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cpe:2.3:a:oisf:suricata:4.1.8
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cpe:2.3:a:oisf:suricata:4.1.9
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cpe:2.3:a:oisf:suricata:5.0.0
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cpe:2.3:a:oisf:suricata:5.0.1
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cpe:2.3:a:oisf:suricata:5.0.10
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cpe:2.3:a:oisf:suricata:5.0.2
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cpe:2.3:a:oisf:suricata:5.0.3
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cpe:2.3:a:oisf:suricata:5.0.4
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cpe:2.3:a:oisf:suricata:5.0.5
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cpe:2.3:a:oisf:suricata:5.0.6
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cpe:2.3:a:oisf:suricata:5.0.7
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cpe:2.3:a:oisf:suricata:5.0.8
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cpe:2.3:a:oisf:suricata:5.0.9
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cpe:2.3:a:oisf:suricata:6.0.0
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cpe:2.3:a:oisf:suricata:6.0.1
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cpe:2.3:a:oisf:suricata:6.0.10
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cpe:2.3:a:oisf:suricata:6.0.11
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cpe:2.3:a:oisf:suricata:6.0.12
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cpe:2.3:a:oisf:suricata:6.0.13
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cpe:2.3:a:oisf:suricata:6.0.14
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cpe:2.3:a:oisf:suricata:6.0.15
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cpe:2.3:a:oisf:suricata:6.0.16
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cpe:2.3:a:oisf:suricata:6.0.17
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cpe:2.3:a:oisf:suricata:6.0.18
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cpe:2.3:a:oisf:suricata:6.0.19
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cpe:2.3:a:oisf:suricata:6.0.2
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cpe:2.3:a:oisf:suricata:6.0.20
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cpe:2.3:a:oisf:suricata:6.0.3
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cpe:2.3:a:oisf:suricata:6.0.4
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cpe:2.3:a:oisf:suricata:6.0.5
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cpe:2.3:a:oisf:suricata:6.0.6
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cpe:2.3:a:oisf:suricata:6.0.7
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cpe:2.3:a:oisf:suricata:6.0.8
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cpe:2.3:a:oisf:suricata:6.0.9
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cpe:2.3:a:oisf:suricata:7.0.0
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cpe:2.3:a:oisf:suricata:7.0.1
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cpe:2.3:a:oisf:suricata:7.0.10
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cpe:2.3:a:oisf:suricata:7.0.11
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cpe:2.3:a:oisf:suricata:7.0.12
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cpe:2.3:a:oisf:suricata:7.0.13
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cpe:2.3:a:oisf:suricata:7.0.2
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cpe:2.3:a:oisf:suricata:7.0.3
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cpe:2.3:a:oisf:suricata:7.0.4
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cpe:2.3:a:oisf:suricata:7.0.5
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cpe:2.3:a:oisf:suricata:7.0.6
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cpe:2.3:a:oisf:suricata:7.0.7
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cpe:2.3:a:oisf:suricata:7.0.8
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cpe:2.3:a:oisf:suricata:7.0.9
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cpe:2.3:a:oisf:suricata:8.0.0
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cpe:2.3:a:oisf:suricata:8.0.1
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cpe:2.3:a:oisf:suricata:8.0.2