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Fencer Vulns
medium 5.5

CVE-2020-10251 json

In ImageMagick 7.0.9, an out-of-bounds read vulnerability exists within the ReadHEICImageByID function in coders\heic.c.

published 2020-03-10 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-2706

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

In ImageMagick 7.0.9, an out-of-bounds read vulnerability exists within the ReadHEICImageByID function in coders\heic.c. It can be triggered via an image with a width or height value that exceeds the actual size of the image.

Patch / fix

  • imagemagick Debian 14, Debian 13, Debian 12 8:6.9.11.24+dfsg-1

debian advisories DEBIAN-CVE-2020-10251

  • imagemagick Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 7.0.10.0-r0

alpine advisories ALPINE-CVE-2020-10251

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-2020-10251 updated cvss 5.5

ImageMagick: out-of-bounds read in ReadHEICImageByID function in coders/heic.c

  • Red Hat Enterprise Linux 5 ImageMagick Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl
    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

1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/ImageMagick/ImageMagick/issues/1859 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.