CVE-2025-29918

Suricata pcre: negated pcr can cause infinite loop

Published Apr 10, 2025 CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4103-1 suricata security update
EUVD EUVD EUVD-2025-10709 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.
History
Type Values Removed Values Added
First Time appeared Oisf
Oisf suricata
CPEs cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*
Vendors & Products Oisf
Oisf suricata
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Suricata pcre: negated pcr can cause infinite loop
Weaknesses CWE-835
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 3, 2025, 7:46 PM
Reserved
Mar 12, 2025, 1:42 PM
Status
Modified
Published
Apr 10, 2025, 9:15 PM
Modified
Jun 17, 2026, 9:05 AM