CVE-2026-28686: ImageMagick: Write heap-buffer-overflow in PCL encoder via undersized output buffer

March 12, 2026

A heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized output buffer allocation.

WRITE of size 1 at 0x7e79f91f31a0 thread T0

References

github.com/ImageMagick/ImageMagick
github.com/ImageMagick/ImageMagick/security/advisories/GHSA-467j-76j7-5885
github.com/advisories/GHSA-467j-76j7-5885
github.com/dlemstra/Magick.NET/releases/tag/14.10.4
nvd.nist.gov/vuln/detail/CVE-2026-28686

Code Behaviors & Features

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