CVE-2026-30931
ImageMagick: ImageMagick: Heap-based buffer overflow leading to out-of-bounds write
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 10, 2026
Updated · August 18, 2026
Description
A flaw was found in ImageMagick, a software used for editing and manipulating digital images. A local attacker can exploit a heap-based buffer overflow vulnerability within the UHDR encoder. This vulnerability arises from the truncation of a value, enabling an out-of-bounds write. Successful exploitation could lead to a denial of service, making the software unavailable, and potentially result in information disclosure.
Statement
MODERATE: This flaw in ImageMagick involves a heap-based buffer overflow within the UHDR encoder, which could lead to an out-of-bounds write due to value truncation. This vulnerability affects systems processing untrusted image files with ImageMagick.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 6.8CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE-190 · Integer Overflow or Wraparound