CVE-2025-29918
MEDIUMCVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
3Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A PCRE rule can be written that leads to an infinite loop when negated PCRE is used. Packet processing thread becomes stuck in infinite loop limiting visibility and availability in inline mode. This vulnerability is fixed in 7.0.9.
Analysis
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity.
Technical Context
This vulnerability is classified under CWE-835. Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A PCRE rule can be written that leads to an infinite loop when negated PCRE is used. Packet processing thread becomes stuck in infinite loop limiting visibility and availability in inline mode. This vulnerability is fixed in 7.0.9. Affected products include: Oisf Suricata.
Affected Products
Oisf Suricata.
Remediation
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Priority Score
Vendor Status
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External POC / Exploit Code
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