ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a stack overflow in the MSL decoder caused by an incorrect depth check that fails to limit recursion. Attackers can supply a set of crafted MSL images that exhaust the stack when one of them is read, crashing the process and causing a denial of service.
https://github.com/ImageMagick/ImageMagick6/commit/c10823904b251d07fe79346a7136b0af295d451b
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-462x-739v-qvq2
https://github.com/ImageMagick/ImageMagick/commit/507aee2308046b25e251d0be1a5371327bb79683
Published: 2026-10-12
Updated: 2026-10-15
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00424