CVE-2026-33899CWE-122CWE-191

ImageMagick: Heap BufferOverflow write of single zero byte when parsing XML

Medium · published April 13, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
43.6
In the wild
Unconfirmed
What it is

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-189 and 6.9.13-44, when `Magick` parses an XML file it is possible that a single zero byte is written out of the bounds. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00524 · 43.6th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2026-04-13T20:46Z
EPSS history
Timeline
  • 13 APR 20:46Z
    ImageMagick: Heap BufferOverflow write of single zero byte when parsing XML
    cvelistv5