4.1

CVSS Score

3.1

-

CVSS Score

Basic Information

Concerned about an active attack path?

Talk to our security experts and see Miggo in action.

Miggo Vulnerability Database

→

CVE-2026-46692

CVE-2026-46692: ImageMagick: Heap Buffer Over-Write in distributed pixel cache server

An attacker who can connect to a magick -distribute-cache service can cause a heap buffer over-write in the server process.

(GitHub Advisory)

Miggo Vulnerability Database

→

CVE-2026-46692

CVE-2026-46692:

4.1

CVSS Score

3.1

-

CVSS Score

Basic Information

Is this CVE running in your environment?

Easily map the attack path and prioritize which CVEs are a threat to your organization

Validate Exposure

Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
Magick.NET-Q16-AnyCPU	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-HDRI-AnyCPU	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-HDRI-arm64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-HDRI-x64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-HDRI-x86	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-OpenMP-arm64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-OpenMP-x64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-arm64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-x64	nuget	< 14.12.0	14.12.0
Magick.NET-Q16-x86	nuget	< 14.12.0	14.12.0
Magick.NET-Q8-AnyCPU	nuget	< 14.12.0	14.12.0
Magick.NET-Q8-OpenMP-arm64	nuget	< 14.12.0	14.12.0
Magick.NET-Q8-OpenMP-x64	nuget	< 14.12.0	14.12.0
Magick.NET-Q8-arm64	nuget	< 14.12.0	14.12.0
Magick.NET-Q8-x64	nuget	< 14.12.0	14.12.0
Magick.NET-Q8-x86	nuget	< 14.12.0	14.12.0

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability exists in the distributed pixel cache server component of ImageMagick. When handling incoming network requests to write pixel data, specifically metacontent and pixel data, the server reads a data length from the network stream. This length value was not validated against the size of the destination buffer on the heap. An attacker could provide a malicious length value, larger than the buffer, causing a heap buffer overflow when the server attempts to copy the pixel data. The patch introduces a size validation, calculating the expected maximum size (extent) and comparing it with the received length. The vulnerable functions, WriteDistributeCacheMetacontent and WriteDistributeCachePixels in MagickCore/distribute-cache.c, were patched to include this check, mitigating the vulnerability.

Vulnerable functions

WriteDistributeCacheMetacontent

MagickCore/distribute-cache.c

The function reads a 'length' value from a network packet, which is controlled by an attacker. This 'length' is then used to determine how much data to copy into a heap-allocated buffer. Before the patch, there was no validation to ensure that 'length' did not exceed the buffer's allocated size ('extent'). This allowed an attacker to write past the end of the buffer, causing a heap-based buffer overflow.

WriteDistributeCachePixels

MagickCore/distribute-cache.c

Vulnerability Intelligence
Miggo AI

Unlock WAF rules for this CVE

Generate vendor-ready rules for the observed attack patterns, plus reasoning and safe deployment guidance

Get WAF rules

WAF Protection Rules

WAF Rule

W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.

Reasoning

*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.