CVE-2021-20246

Name: CVE-2021-20246
Creator: NVD / NIST
Published: 2021-03-09T19:15:12.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2021-20246 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw was found in ImageMagick in MagickCore/resample.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

A flaw was found in ImageMagick in MagickCore/resample.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.23%

65.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-369

Affected Software

Vendor	Product	Versions
Imagemagick	Imagemagick	< 6.9.11-62
Imagemagick	Imagemagick	>= 7.0.0, < 7.0.10-62
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Fedoraproject	Fedora	33
Debian	Debian Linux	9.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1928941Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00030.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html
https://bugzilla.redhat.com/show_bug.cgi?id=1928941Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00030.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html

Timeline

Published: Mar 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20246?

How severe is CVE-2021-20246?

CVE-2021-20246 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20246?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20246?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST