Heap-based buffer overflow in ImageMagick - CVE-2026-27799
Published: February 25, 2026
Vulnerability identifier: #VU123224
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-27799
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: ImageMagick.org
Affected software:
ImageMagick
ImageMagick
Detailed vulnerability description
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the DJVU image format handler. A local attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and cause a denial of service condition on the target system.
How to mitigate CVE-2026-27799
Install updates from vendor's website.