CVE-2023-42117
moderate-risk
Published 2024-05-03
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17554.
Do I need to act?
~
7.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: de76e9b07d0b6e463f0d6c24b3695966218809dd
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (3)
47
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
10/34 · Low
Exposure
5/34 · Minimal