CVE-2026-25798 ImageMagick has NULL Pointer Dereference in ClonePixelCacheRepository via crafted image

What is CVE-2026-25798?

CVE-2026-25798 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 24 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a NULL pointer dereference in ClonePixelCacheRepository allows a remote attacker to crash any application linked against ImageMagick by supplying a crafted image file, resulting in denial of service. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Weakness: CWE-476

Which versions are affected by CVE-2026-25798?

36 open source packages ship an affected version, including Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU and Magick.NET-Q16-HDRI-OpenMP-arm64. It affects 1 product.

Products include Imagemagick Imagemagick.

How do I fix CVE-2026-25798?

Upgrade Magick.NET-Q16-AnyCPU to 14.10.3 or later.

Is CVE-2026-25798 being exploited?

There is no known exploitation of CVE-2026-25798 in the wild and no public exploit code.

Other vulnerabilities in Imagemagick Imagemagick

• CVE-2019-19952 Use after free in n/a Critical 9.8
• CVE-2018-16328 Null dereference in n/a Critical 9.8
• CVE-2018-16329 Null dereference in n/a Critical 9.8
• CVE-2017-18210 Null dereference in n/a Critical 9.8
• CVE-2017-14138 Denial of service in n/a Critical 9.8

All Imagemagick Imagemagick vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-25798, ECHO-baa9-b0dd-7fd5, GHSA-p863-5fgm-rgq4, JLSEC-2026-948, MINI-3r2x-ff2v-rp9g, UBUNTU-CVE-2026-25798.