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Xorg X11 Server Out-of-Bounds Read Vulnerability in Animated Cursor Handling

Vulnerability

A flaw exists in the X Rendering extension of the Xorg X11 server's handling of animated cursors. When a client does not provide any cursors, the server incorrectly assumes that at least one is available. This misjudgment can lead to an out-of-bounds read, potentially causing a server crash.

Impact

Exploitation of this vulnerability leads to an out-of-bounds read, which can cause a crash of the Xorg X11 server.

Added: Jun 17, 2025, 4:49 PM
Updated: Jun 17, 2025, 4:49 PM

Vulnerability Rating

Custom Algorithm
spread
8.1
impact
2.5
exploitability
4.9
remediation
0.0
relevance
0.2
threat
0.0
urgency
2.9
incentive
1.7

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