CVE-2025-29918
CVE-2025-29918 is a medium-severity vulnerability in Oisf Suricata with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-835.
Key facts
- Severity: Medium (CVSS 3.x base score 6.2)
- EPSS exploit prediction: 0% (15th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-10709
- Weakness: CWE-835
- Affected product: Oisf Suricata
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-29918?
- 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.
- How severe is CVE-2025-29918?
- CVE-2025-29918 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-29918 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-29918?
- CVE-2025-29918 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-29918?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-29918 have an EU (EUVD) identifier?
- Yes. CVE-2025-29918 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10709.
- When was CVE-2025-29918 published?
- CVE-2025-29918 was published on 2025-04-10 and last updated on 2026-06-17.
References
- https://github.com/OISF/suricata/commit/b14c67cbdf25fa6c7ffe0d04ddf3ebe67b12b50b
- https://github.com/OISF/suricata/security/advisories/GHSA-924c-vvm5-9mqx
- https://redmine.openinfosecfoundation.org/issues/7526
- https://lists.debian.org/debian-lts-announce/2025/03/msg00029.html
Affected products (1)
- cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*
More vulnerabilities in Oisf Suricata
- CVE-2023-35853 — Critical (CVSS 9.8): In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code.…
- CVE-2021-37592 — Critical (CVSS 9.8): Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a…
- CVE-2018-10244 — Critical (CVSS 9.8): Suricata version 4.0.4 incorrectly handles the parsing of an EtherNet/IP PDU. A malformed PDU can cause the parsing…
- CVE-2019-18792 — Critical (CVSS 9.1): An issue was discovered in Suricata 5.0.0. It is possible to bypass/evade any tcp based signature by overlapping a TCP…
- CVE-2026-31937 — High (CVSS 7.5): Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffering can lead to a…
- CVE-2026-31935 — High (CVSS 7.5): Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation…
All CVEs affecting Oisf Suricata →
Other CWE-835 (Loop with Unreachable Exit Condition (Infinite Loop)) vulnerabilities
- CVE-2026-24816 — Critical (CVSS 10.0): Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in datavane tis…
- CVE-2018-20784 — Critical (CVSS 9.8): In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a…
- CVE-2017-12997 — Critical (CVSS 9.8): The LLDP parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in…
- CVE-2017-12995 — Critical (CVSS 9.8): The DNS parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in print-domain.c:ns_print().
- CVE-2017-12990 — Critical (CVSS 9.8): The ISAKMP parser in tcpdump before 4.9.2 could enter an infinite loop due to bugs in print-isakmp.c, several functions.
- CVE-2026-31448 — Critical (CVSS 9.4): In the Linux kernel, the following vulnerability has been resolved: ext4: avoid infinite loops caused by residual…
Browse all CWE-835 (Loop with Unreachable Exit Condition (Infinite Loop)) vulnerabilities →