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Giflib Double-Free Vulnerability

Vulnerability

A double-free vulnerability has been identified in Giflib versions 5.0.0 through 6.1.1. This issue arises from a shallow copy in the function GifMakeSavedImage, combined with improper error handling. While the conditions to exploit this vulnerability are challenging, they may be achievable.

Impact

Exploitation of this vulnerability leads to a double-free condition, which can potentially be exploited to execute arbitrary code or cause a program crash.

Added: Mar 10, 2026, 8:43 PM
Updated: Mar 10, 2026, 8:43 PM

Vulnerability Rating

Custom Algorithm
spread
6.6
impact
1.9
exploitability
5.3
remediation
0.0
relevance
3.7
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.