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Fencer Vulns
medium 5.5

CVE-2021-44917 json

A Divide by Zero vulnerability exists in gnuplot 5.4 in the boundary3d function in graph3d.c, which could cause a Arithmetic exception and…

published 2021-12-21 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31715

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

A Divide by Zero vulnerability exists in gnuplot 5.4 in the boundary3d function in graph3d.c, which could cause a Arithmetic exception and application crash.

Patch / fix

  • gnuplot Debian 14, Debian 13, Debian 12 5.4.2+dfsg2-2

debian advisories DEBIAN-CVE-2021-44917

  • gnuplot Ubuntu Pro 14.04 LTS 4.6.4-2ubuntu0.1~esm1
  • gnuplot Ubuntu Pro 16.04 LTS 4.6.6-3ubuntu0.1+esm1
  • gnuplot Ubuntu Pro 18.04 LTS 5.2.2+dfsg1-2ubuntu1+esm1
  • gnuplot Ubuntu Pro 20.04 LTS 5.2.8+dfsg1-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2021-44917

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gnuplot openSUSE Tumbleweed 5.4.3-1.1

opensuse advisories openSUSE-SU-2024:11723-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-44917 updated cvss 5.5

gnuplot: Divide by Zero in the boundary3d function in graph3d.c

  • Red Hat Enterprise Linux 6 gnuplot, emacs-gnuplot, gnuplot-latex, gnuplot-common, gnuplot-minimal, emacs-gnuplot-el Red Hat Enterprise Linux 7 gnuplot, emacs-gnuplot, gnuplot-latex, gnuplot-common, gnuplot-minimal, emacs-gnuplot-el
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 gnuplot, gnuplot-common
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceforge.net https://sourceforge.net/p/gnuplot/bugs/2474/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.