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ImageMagick Heap Overflow Vulnerability in VIFF Encoder on 32-Bit Builds

Vulnerability

A heap overflow vulnerability has been identified in ImageMagick versions prior to 7.1.2-19 and 6.9.13-44. The issue arises in the VIFF encoder on 32-bit builds, where an integer truncation and wraparound problem could lead to an out-of-bounds write in the heap, potentially causing a crash.

Impact

Exploitation of this vulnerability causes a heap-based buffer overflow, leading to a crash of the application.

Remediation

Users can upgrade to ImageMagick versions 7.1.2-19 or 6.9.13-44 to address this vulnerability.

Added: Apr 13, 2026, 9:29 PM
Updated: Apr 13, 2026, 9:29 PM

Vulnerability Rating

Custom Algorithm
spread
7.8
impact
3.1
exploitability
5.0
remediation
7.7
relevance
5.8
threat
3.2
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.