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Exim Heap Corruption Vulnerability Allowing Remote Code Execution

Vulnerability

A heap corruption vulnerability has been identified in Exim versions prior to 4.99.1. This vulnerability allows for remote exploitation, leading to heap corruption that could potentially be exploited to execute arbitrary code.

Impact

Exploitation of this vulnerability can lead to remote code execution on the affected system.

Added: Dec 14, 2025, 4:17 AM
Updated: Dec 14, 2025, 4:17 AM

Vulnerability Rating

Custom Algorithm
spread
2.2
impact
0.6
exploitability
5.4
remediation
0.0
relevance
1.5
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.