ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.
CVE-2026-56361
CVSS base score
3.3 (v3.1)
Severity
LOW
Attack vector
Local
Weakness
CWE-125
Last modified
October 29, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
imagemagick imagemagick
References
- github.com Vendor Advisory
- www.vulncheck.com Third Party Advisory