ImageMagick has a heap-Buffer-Overflow write of a single zero byte when parsing xml.

Description

When Magick parses an XML file it is possible that a single zero byte is written out of the bounds.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-04-13 19:33:00 UTC
Updated
2026-04-15 20:56:28 UTC
GitHub reviewed
2026-04-13 19:33:00 UTC
NVD published
2026-04-13 21:16:25 UTC

EPSS Score

Score Percentile
0.04% 12.41%

CVSS Scores

Base score Version Severity Vector
5.3 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.

Identifiers

CWEs

CWE id Name
CWE-122 Heap-based Buffer Overflow
CWE-191 Integer Underflow (Wrap or Wraparound)

Credits

  • unbengable12 (reporter)

Affected packages (17)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
nuget Magick.NET-Q16-AnyCPU < 14.12.0 14.12.0
nuget Magick.NET-Q16-HDRI-AnyCPU < 14.12.0 14.12.0
nuget Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-HDRI-arm64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-HDRI-x64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-HDRI-x86 < 14.12.0 14.12.0
nuget Magick.NET-Q16-OpenMP-arm64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-OpenMP-x64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-arm64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-x64 < 14.12.0 14.12.0
nuget Magick.NET-Q16-x86 < 14.12.0 14.12.0
nuget Magick.NET-Q8-AnyCPU < 14.12.0 14.12.0
nuget Magick.NET-Q8-OpenMP-arm64 < 14.12.0 14.12.0
nuget Magick.NET-Q8-OpenMP-x64 < 14.12.0 14.12.0
nuget Magick.NET-Q8-arm64 < 14.12.0 14.12.0
nuget Magick.NET-Q8-x64 < 14.12.0 14.12.0
nuget Magick.NET-Q8-x86 < 14.12.0 14.12.0

References

cvelogic Threat Intelligence