CVE-2025-64331: oisf suricata Stack-based Buffer Overflow
Vulnerability summary
CVE-2025-64331 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in oisf suricata. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 26-11-2025PublishedVulnerability first disclosed.
- 28-11-2025Last modifiedVulnerability information updated.
Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a stack overflow can occur on large HTTP file transfers if the user has increased the HTTP response body limit and enabled the logging of printable http bodies. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves using default HTTP response body limits and/or disabling http-body-printable logging; body logging is disabled by default.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
0.00 pp
From 0.32% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian1 product
- suricata< 1:7.0.10-1+deb13u2 | < 1:8.0.2-1
Oisf1 product
- suricata< 8.0.2 | < 7.0.13 | ≥ 8.0.0, < 8.0.2
Ubuntu1 product
- suricataAll versions (No fix recorded)
3 vendors · 3 products
References
5 links- github.com/OISF/suricata/security/advisories/GHSA-v32w-j79x-pfj2X Refsource CONFIRMREPORTThird Party Advisory
