CVE-2025-29918CWE-835

Suricata pcre: negated pcr can cause infinite loop

Medium · published April 10, 2025

CVSS v3.1
6.2
EPSS
0%
Percentile
18.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00271 · 18.3th percentile
Weakness
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Published
2025-04-10T21:02Z
EPSS history
Timeline
  • 10 APR 21:02Z
    Suricata pcre: negated pcr can cause infinite loop
    cvelistv5