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
EPSS: 0.001 (1.4th percentile) — read the EPSS interpretation.
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.
Affected products
- Imagemagick — versions >= 7.0.0, < 7.1.2-16, < 6.9.13-41
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
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.