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Status published
Medium
CVE-2025-29918
Suricata pcre: negated pcr can cause infinite loop
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Suricata is vulnerable to a null deref when used with base64_data
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CVE-2025-64334
Suricata is vulnerable to unbounded memory growth for decompression
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CVE-2025-64333
Suricata is vulnerable to a stack overflow from big content-type
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CVE-2025-64332
Suricata is vulnerable to a stack overflow on larger compressed data
High
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Affected Vendor
OISF
View all reports →Affected Software
suricata
Vulnerable Versions:
< 7.0.9
Timeline
Official Publish:
April 10th, 2025
Last Modified:
November 3rd, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H