CVE-2025-62594 - CVE House

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Status published Medium CVE-2025-62594

ImageMagick CLAHE : Unsigned underflow and division-by-zero lead to OOB pointer arithmetic and process crash (DoS)

4.7 CVSS

Vulnerability Description

ImageMagick is a software suite to create, edit, compose, or convert bitmap images. ImageMagick versions prior to 7.1.2-8 are vulnerable to denial-of-service due to unsigned integer underflow and division-by-zero in the CLAHEImage function. When tile width or height is zero, unsigned underflow occurs in pointer arithmetic, leading to out-of-bounds memory access, and division-by-zero causes immediate crashes. This issue has been patched in version 7.1.2-8.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from ImageMagick

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ImageMagick converting a malicious MVG file to SVG caused an integer overflow.

Magick's failure to limit MVG mutual references forming a loop

Magick's failure to limit the depth of SVG file reads caused a DoS attack.

ImageMagick vulnerable to heap-buffer-overflow

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

Affected Vendor

ImageMagick

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Affected Software

ImageMagick

Vulnerable Versions:

< 7.1.2-8

Timeline

Official Publish: October 27th, 2025

Last Modified: October 27th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-119 CWE-369 CWE-191

MITRE ATT&CK TTPs

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1203 Exploitation for Client Execution

T1055 Process Injection

Defense Evasion

T1105 Ingress Tool Transfer

Command and Control

T1499.003 Application Exhaustion Flood

T1190 Exploit Public-Facing Application

T1574 Hijack Execution Flow

Privilege Escalation

T1059 Command and Scripting Interpreter

T1485 Data Destruction

T1499 Endpoint Denial of Service