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Fencer Vulns
critical 9.8

CVE-2020-10938 json

GraphicsMagick before 1.3.35 has an integer overflow and resultant heap-based buffer overflow in HuffmanDecodeImage in magick/compress.c.

published 2020-03-24 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3343

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

GraphicsMagick before 1.3.35 has an integer overflow and resultant heap-based buffer overflow in HuffmanDecodeImage in magick/compress.c.

Patch / fix

  • graphicsmagick graphicsmagick 1.3.35
  • graphicsmagick Debian 14, Debian 13, Debian 12 1.4+really1.3.34-1

debian advisories DEBIAN-CVE-2020-10938

  • graphicsmagick Ubuntu Pro 14.04 LTS 1.3.18-1ubuntu3.1+esm7
  • graphicsmagick Ubuntu Pro 16.04 LTS 1.3.23-1ubuntu0.6+esm1
  • graphicsmagick Ubuntu Pro 18.04 LTS 1.3.28-2ubuntu0.1+esm1

ubuntu advisories UBUNTU-CVE-2020-10938

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

  • GraphicsMagick Package Hub 15 SP1 1.3.29-bp151.5.12.1
  • GraphicsMagick openSUSE Leap 15.1 1.3.29-lp151.4.17.1

opensuse advisories openSUSE-SU-2020:0429-1openSUSE-SU-2020:0416-1

  • graphicsmagick Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 1.3.35-r0

alpine advisories ALPINE-CVE-2020-10938

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2020-10938 updated cvss 9.8

GraphicsMagick: integer overflow and resultant heap-based buffer overflow in HuffmanDecodeImage in magick/compress.c

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

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

4.66% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/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.