CVE-2025-31177

Gnuplot: gnuplot heap-buffer overflow on utf8_copy_one

publishedCWE-122

gnuplot is affected by a heap buffer overflow at function utf8_copy_one.

Technical severity5.5 mediumCVSS 3.1 · CNA: redhat

Published2025-05-07Source updated 2026-11-05

Collected2026-11-052 attributed sources

Fixes and workarounds

Workaround

Currently, no mitigation is available for this vulnerability

Source: CNA: redhat

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
`gnuplot` https://sourceforge.net/projects/gnuplot/	≥ 0; < 6.0 (affected, semver) Other versions: unaffected	CNA: redhat
Red Hat Enterprise Linux 6 Red Hat `gnuplot` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat
Red Hat Enterprise Linux 7 Red Hat `gnuplot` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat
Red Hat Enterprise Linux 8 Red Hat `gnuplot` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 5.5 medium	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`	CNA: redhat

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://access.redhat.com/security/cve/CVE-2025-31177CNA: redhat · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2355342CNA: redhat · issue-tracking, x_refsource_REDHAT
https://sourceforge.net/p/gnuplot/bugs/2756/CNA: redhat

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