VYPR
← All advisories
Critical severity9.8NVD Advisory· Published May 3, 2024· Updated Jun 17, 2026

CVE-2023-42116

CVE-2023-42116

Description

Exim SMTP Challenge Stack-based Buffer Overflow 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 handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17515.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

28

Patches

Vulnerability mechanics

References

2

News mentions

0

No linked articles in our index yet.