Buffer overflow in Imagemagick

CVE-2026-28494

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a stack buffer overflow exists in ImageMagick's morphology kernel parsing functions. User-controlled kernel strings exceeding a buffer are copied into fixed-size stack buffers via memcpy without bounds checking, resulting in stack corruption. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-28494: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

  • Imagemagick — versions >= 7.0.0, < 7.1.2-16, < 6.9.13-41

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-28494?
CVE-2026-28494 is a high-severity vulnerability in Imagemagick, classified under Stack-based Buffer Overflow. CVSS score: 7.1/10. Published 2026-03-10.
How severe is CVE-2026-28494?
High severity. CVSS v3 base score is 7.1 out of 10.