CVE-2026-27799
ImageMagick has a heap Buffer Over-read in its DJVU image format handler
4.0
MEDIUM
CVSS 3.1
EPSS 0.02%
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the DJVU image format handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-bounds memory reads. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
How to fix CVE-2026-27799
To remediate CVE-2026-27799, upgrade the affected package to a fixed version below.
- —upgrade to 8:6.9.11.60+dfsg-1.3+deb11u10 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —upgrade to 14.10.3 or later
- —
Is CVE-2026-27799 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (20)
- from 0, < 8:6.9.11.60+dfsg-1.3+deb11u10
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
- from 0, < 14.10.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.0 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L |