CVE-2023-42115 — Out-of-bounds Write in Exim
Severity
9.8CRITICALNVD
OSV5.3
EPSS
70.7%
top 1.30%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Timeline
PublishedMay 3
Latest updateFeb 18
Description
Exim AUTH Out-Of-Bounds Write 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 write past the end of a buffer. An attacker can leverage this vulnerability t…
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
🔴Vulnerability Details
4GHSA
▶
🔍Detection Rules
1📋Vendor Advisories
3🕵️Threat Intelligence
11Greynoiseio▶
GreyNoise Detects Active Exploitation of CVEs Mentioned in Black Basta’s Leaked Chat Logs↗2025-02-26