Main Vulnerability Database Vulnerabilities #VU65212

Input validation error in Lync Server and Skype for Business Server - CVE-2022-33633

Published: July 12, 2022

Vulnerability identifier: #VU65212

CSH Severity: Low

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-33633

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input in Skype for Business and Lync. A remote administrator can pass specially crafted input to the application and execute arbitrary code on the target system.

Affected software

Lync Server
Skype for Business Server

How to mitigate CVE-2022-33633

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-33633

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