Buffer overflow in Imagemagick
CVE-2026-34238
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.001 (3.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Imagemagick — versions < 6.9.13-44, < 7.1.2-19
Weakness classification (CWE)
References
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-26qp-ffjh-2x4v (Vendor Advisory)
- github.com/ImageMagick/ImageMagick/commit/bcd8519c70ecd9ebbc180920f2cf97b267d1f… (Patch)
- github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19 (Release Notes)
- github.com/dlemstra/Magick.NET/releases/tag/14.12.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-34238?
- CVE-2026-34238 is a medium-severity vulnerability in Imagemagick, classified under Integer Overflow or Wraparound. CVSS score: 5.1/10. Published 2026-04-13.
- How severe is CVE-2026-34238?
- Medium severity. CVSS v3 base score is 5.1 out of 10.