Buffer overflow in Gnuplot
CVE-2025-31177
gnuplot is affected by a heap buffer overflow at function utf8_copy_one.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (8.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2025-31177 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- sourceforge.net/p/gnuplot/bugs/2756/
Frequently asked questions
- What is CVE-2025-31177?
- CVE-2025-31177 is a medium-severity vulnerability in Gnuplot, classified under Heap-based Buffer Overflow. CVSS score: 5.5/10. Published 2025-05-07.
- How severe is CVE-2025-31177?
- Medium severity. CVSS v3 base score is 5.5 out of 10.