CVSS 3.1 Score 9.8 of 10 (high)


Published Dec 8, 2023
Updated: Dec 13, 2023
CWE ID 287


CVE-2023-43742 is a critical vulnerability found in Zultys products including MX-SE, MX-SE II, MX-E, MX-Virtual, MX250, and MX30 with firmware versions prior to 17.0.10 patch 17161 and 16.04 patch 16109. This vulnerability allows unauthenticated attackers to gain administrative access by exploiting an authentication bypass flaw. Typically, when the Zultys MX Administrator Windows client fails to authenticate, the server sends a login failure message and disconnects the client. However, in this case, if the client ignores the failure message and continues, the server does not terminate the connection and processes subsequent requests as if authentication was successful. This poses a high danger to organizations as unauthorized individuals can obtain administrative privileges on affected Zultys systems. To remediate this vulnerability, it is crucial to update Zultys devices to firmware versions 17.0.10 patch 17161 or 16.04 patch 16109 or later.

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