Resource exhaustion in Oisf Suricata
CVE-2025-29916
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Datasets declared in rules have an option to specify the `hashsize` to use. This size setting isn't properly limited, so the hash table allocation can be large. Untrusted rules can lead to large memory allocations, potentially leading to denial of service due to resource starvation. This vulnerability is fixed in 7.0.9.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (17.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Oisf Suricata — versions < 7.0.9
Weakness classification (CWE)
References
- github.com/OISF/suricata/security/advisories/GHSA-27g3-pmvp-j9cv (Vendor Advisory)
- github.com/OISF/suricata/commit/a7713db709b8a0be5fc5e5809ab58e9b14a16e85 (Patch)
- redmine.openinfosecfoundation.org/issues/7615 (Permissions Required)
Frequently asked questions
- What is CVE-2025-29916?
- CVE-2025-29916 is a medium-severity vulnerability in Oisf Suricata, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.2/10. Published 2025-04-10.
- How severe is CVE-2025-29916?
- Medium severity. CVSS v3 base score is 6.2 out of 10.