CVE-2025-66628 — Vulnerability in Magick.NET-Q16-HDRI-x86 — CVE...

HIGH

ImageMagick is vulnerable to an integer Overflow in TIM decoder leading to out of bounds read (32-bit only)

Published December 10, 2025Updated September 10, 2026Source: osv

Summary

### Summary The TIM (PSX TIM) image parser in ImageMagick contains a critical integer overflow vulnerability in the `ReadTIMImage` function (`coders/tim.c`). The code reads `width` and `height` (16-bit values) from the file header and calculates `image_size = 2 * width * height` without checking for overflow. On 32-bit systems (or where `size_t` is 32-bit), this calculation can overflow if `width` and `height` are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via `AcquireQuantumMemory` and later operations relying on the dimensions can trigger an out of bounds read. ### Vulnerable Code File: `coders/tim.c` ```c width=ReadBlobLSBShort(image); height=ReadBlobLSBShort(image); image_size=2*width*height; // Line 234 - NO OVERFLOW CHECK! ``` ### Impact This vulnerability can lead to Arbitrary Memory Disclosure due to an out of bounds read on 32-bit systems.

Advisory Timeline

First published December 10, 2025 (306 days ago).
Last revised September 10, 2026 — 274 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.10.0 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.0

NuGet

Update Magick.NET-Q16-x86 to 14.10.0 or later

dotnet add package Magick.NET-Q16-x86 --version 14.10.0

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.10.0 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.0

NuGet

Update Magick.NET-Q8-AnyCPU to 14.10.0 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.0

NuGet

Update Magick.NET-Q16-AnyCPU to 14.10.0 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.0

NuGet

Update Magick.NET-Q8-x86 to 14.10.0 or later

dotnet add package Magick.NET-Q8-x86 --version 14.10.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (6)

Affects 1 ecosystem: nuget (6).

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+199 more)	14.10.0
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+218 more)	14.10.0
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+199 more)	14.10.0
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+202 more)	14.10.0
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+202 more)	14.10.0
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+218 more)	14.10.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-125
Out-of-bounds ReadMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Frequently Asked Questions

What is CVE-2025-66628?: ImageMagick is vulnerable to an integer Overflow in TIM decoder leading to out of bounds read (32-bit only) This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2025-66628?: CVE-2025-66628 affects Magick.NET-Q16-HDRI-x86, Magick.NET-Q16-x86 and Magick.NET-Q16-HDRI-AnyCPU (and 3 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-66628 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-6hjr-v6g4-3fm8

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