🛡️ CVE-2023-42119
🟢 CVSS 3.1 — Low ✅ No Known Exploit CWE-125 NVD
3.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information 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 read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. . Was ZDI-CAN-17643.

Details

Severity LOW
CVSS Score 3.1
CVSS Vector CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2024-05-03
Updated 2026-06-08
Modified 2025-11-03
Fix URL N/A

Affected Packages

Software From version Fixed in
exim — 4.96.2

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