CVE-2026-28686
ImageMagick: ImageMagick: Denial of Service via heap-buffer-overflow in PCL encode
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, free and open-source software used for editing and manipulating digital images. A local attacker could exploit a heap-buffer-overflow vulnerability in the PCL encode due to an undersized output buffer allocation. This could lead to a denial of service (DoS), making the software unavailable, and potentially impact data integrity.
Statement
This MODERATE impact vulnerability in ImageMagick involves a heap-buffer-overflow within the PCL encoder. Processing a specially crafted image could trigger this flaw, potentially leading to denial of service or other impacts. This affects Red Hat Enterprise Linux 6 ELS and 7 ELS, as well as community projects like Fedora and EPEL, where ImageMagick is used for image processing.
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-131 · Incorrect Calculation of Buffer Size