CVE-2026-33900CWE-190

ImageMagick has a Heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds

Medium · published April 13, 2026

CVSS v3.1
5.9
EPSS
1%
Percentile
48.0
In the wild
Unconfirmed
What it is

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, the viff encoder contains an integer truncation/wraparound issue on 32-bit builds that could trigger an out of bounds heap write, potentially causing a crash. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00600 · 48.0th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-04-13T20:50Z
EPSS history
Timeline
  • 13 APR 20:50Z
    ImageMagick has a Heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds
    cvelistv5