PT-2026-21600 · Unknown · Imagemagick

Ylwango613 · Published 2026-02-24 · Updated 2026-05-11 · CVE-2026-25794

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ImageMagick versions prior to 7.1.2-15

Description ImageMagick is software used for editing and manipulating digital images. The WriteUHDRImage function in coders/uhdr.c uses 32-bit integer arithmetic to calculate the pixel buffer size. When image dimensions are large, this calculation can overflow, resulting in an undersized heap allocation and an out-of-bounds write. This can crash the process or potentially lead to an out-of-bounds heap write. The vulnerable function is WriteUHDRImage.

Recommendations Update to ImageMagick version 7.1.2-15 or later.

Exploit

Fix

RCE

Heap Based Buffer Overflow

Integer Overflow

Weakness Enumeration

CWE-122

CWE-190

Related Identifiers

CVE-2026-25794

ECHO-D0BC-1155-4868

GHSA-VHQJ-F5CJ-9X8H

OESA-2026-1452

OESA-2026-1454

OESA-2026-1455

OESA-2026-1456

OESA-2026-1457

OPENSUSE-SU-2026:10267-1

OPENSUSE-SU-2026:20337-1

USN-8263-1

Affected Products

Imagemagick

References · 157

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25794.json · Exploit
• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vhqj-f5cj-9x8h · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-25794 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-25794 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25988 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-25798 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-25796 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-25637 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-25795 · Security Note
• https://osv.dev/vulnerability/USN-8263-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-25794 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25799 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-25985 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-25971 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-24484 · Security Note