The Microsoft Skype for Business installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - External control of file name or path in Skype for Business allows an unauthorized attacker to execute     code over a network. (CVE-2026-66302)

  - Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business     allows an unauthorized attacker to perform spoofing over a network. (CVE-2026-63523, CVE-2026-69642)

  - Server-side request forgery (ssrf) in Skype for Business allows an unauthorized attacker to disclose     information over a network. (CVE-2026-66304)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Skype for Business (September 2026)

medium Nessus Plugin ID 344822

Version 1.3