CVE-2026-46559
ImageMagick: Heap Buffer Over-Write of a single byte in the JP2 encoder.
4.0
MEDIUM
CVSS 3.1
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, an incorrect check in the JP2 will result in an heap buffer over-write of a single byte when specifying certain options. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.
How to fix CVE-2026-46559
To remediate CVE-2026-46559, upgrade the affected package to a fixed version below.
- Debian/imagemagick—no fix listed
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
- —upgrade to 14.13.1 or later
Is CVE-2026-46559 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-46559.
Affected packages (19)
- from 0
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
- from 0, < 14.13.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.0 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |