Heap Corruption Vulnerability in Exim Mail Transfer Agent
CVE-2025-67896
7HIGH
What is CVE-2025-67896?
A vulnerability in Exim Mail Transfer Agent allows for remote heap corruption, potentially enabling an attacker to exploit this flaw for unauthorized access or denial of service. The issue affects versions prior to 4.99.1, emphasizing the need for users to update to the latest version. Detailed technical insights will be provided in a forthcoming security announcement on December 18, 2025.
Affected Version(s)
Exim 4.99 < 4.99.1
References
CVSS V3.1
Score:
7
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved