ImageMagick up to 6.9.13-43/7.1.2-18 Image Parser integer overflow

Summaryinfo

A vulnerability classified as problematic has been found in ImageMagick up to 6.9.13-43/7.1.2-18. The impacted element is an unknown function of the component Image Parser. This manipulation causes integer overflow. This vulnerability is registered as CVE-2026-33900. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-43/7.1.2-18. Affected by this vulnerability is some unknown processing of the component Image Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. The summary by CVE is:

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, the viff encoder contains an integer truncation/wraparound issue on 32-bit builds that could trigger an out of bounds heap write, potentially causing a crash. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-33900 since 03/24/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 310088 (openSUSE 16 Security Update : ImageMagick (openSUSE-SU-2026:20606-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.9.13-44 or 7.1.2-19 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d27b840a61b322419a66d0d192ff56d52498148d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (310088) and CERT Bund (WID-SEC-2026-1075). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Amazon Linux 2
• SUSE Linux
• SUSE openSUSE
• Open Source ImageMagick

Productinfo

Type

• Image Processing Software

Name

• ImageMagick

Version

• 6.9.13-43
• 7.1.2-18

License

• open-source

Website

• Product: https://www.imagemagick.org/

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion