Out-of-bounds Read in Imagemagick
CVE-2026-56361
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.001 (2.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.001 · change: -0.000
Affected products
- Imagemagick — versions 0, 7.1.2-19, 6.9.13-44
Weakness classification (CWE)
References
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qx (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-56361?
- CVE-2026-56361 is a low-severity vulnerability in Imagemagick, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2026-06-30.
- How severe is CVE-2026-56361?
- Low severity. CVSS v3 base score is 3.3 out of 10.