NULL pointer dereference in Oisf Suricata
CVE-2025-59148
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 8.0.0 and below incorrectly handle the entropy keyword when not anchored to a "sticky" buffer, which can lead to a segmentation fault. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules using the entropy keyword, or validate they are anchored to a sticky buffer.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Oisf Suricata — versions 8.0.0, < 8.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/OISF/suricata/security/advisories/GHSA-5qf6-92xg-3rr3 (Third Party Advisory, Issue Tracking)
- github.com/OISF/suricata/commit/9f32550e18f97ea5d610dd7c36aab0ba142c096c (Patch)
- forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018 (Release Notes)
- redmine.openinfosecfoundation.org/issues/7838 (Issue Tracking)
Frequently asked questions
- What is CVE-2025-59148?
- CVE-2025-59148 is a high-severity vulnerability in Oisf Suricata, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-10-01.
- How severe is CVE-2025-59148?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-59148 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.