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 to execute code in the context of the service account.
. Was ZDI-CAN-17434.
CVSS
No CVSS.
References
| Link | Resource |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-23-1469/ | Third Party Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-23-1469/ | Third Party Advisory |
Configurations
History
07 Aug 2025, 18:04
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* | |
| First Time |
Exim exim
Exim |
|
| References | () https://www.zerodayinitiative.com/advisories/ZDI-23-1469/ - Third Party Advisory |
18 Sep 2024, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | 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 to execute code in the context of the service account. . Was ZDI-CAN-17434. |
03 May 2024, 03:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-05-03 03:15
Updated : 2025-08-07 18:04
NVD link : CVE-2023-42115
Mitre link : CVE-2023-42115
JSON object : View
Products Affected
exim
- exim
CWE
No CWE.