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Medium severity5.3NVD Advisory· Published May 3, 2024· Updated Jun 17, 2026

CVE-2023-42114

CVE-2023-42114

Description

Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information 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 user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to disclose information in the context of the service account. . Was ZDI-CAN-17433.

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Affected products

28

Patches

Vulnerability mechanics

References

2

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