CVE-2020-25663

Name: CVE-2020-25663
Creator: NVD / NIST
Published: 2020-12-08T21:15:12.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2020-25663 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A call to ConformPixelInfo() in the SetImageAlphaChannel() routine of /MagickCore/channel.c caused a subsequent heap-use-after-free or heap-buffer-overflow READ when GetPixelRed() or GetPixelBlue() was called. This could occur if an attacker is able to submit a malicious image file to be processed by ImageMagick and could lead to denial of service. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

A call to ConformPixelInfo() in the SetImageAlphaChannel() routine of /MagickCore/channel.c caused a subsequent heap-use-after-free or heap-buffer-overflow READ when GetPixelRed() or GetPixelBlue() was called. This could occur if an attacker is able to submit a malicious image file to be processed by ImageMagick and could lead to denial of service. It likely would not lead to anything further because the memory is used as pixel data and not e.g. a function pointer. This flaw affects ImageMagick versions prior to 7.0.9-0.

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

1.10%

61.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Imagemagick	Imagemagick	< 7.0.8-56

References

https://bugzilla.redhat.com/show_bug.cgi?id=1891601Issue Tracking, Patch, Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1723Exploit, Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1723#issuecomment-718275153Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1891601Issue Tracking, Patch, Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1723Exploit, Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/1723#issuecomment-718275153Third Party Advisory

Timeline

Published: Dec 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25663?

How severe is CVE-2020-25663?

CVE-2020-25663 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25663?

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-2020-25663?

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

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Source: NVD / NIST