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Vulnerabilities of Microsoft Skype for Business Server Subscription Edition CU1

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CVE Summary Score Published
CVE-2026-70297 Absolute path traversal in Skype for Business and Microsoft Lync allows an authorized attacker to execute code over a… 8.8 High Oct 13, 2026
CVE-2026-83746 Absolute path traversal in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges… 8.1 High Oct 13, 2026
CVE-2026-85873 Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over… 6.5 Medium Oct 13, 2026
CVE-2026-66307 Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a… 7.5 High Sep 8, 2026
CVE-2026-66303 Null pointer dereference in Skype for Business allows an authorized attacker to deny service over a network 6.5 Medium Sep 8, 2026
CVE-2026-69646 Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform… 8.3 High Sep 8, 2026
CVE-2026-69642 Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an… 6.5 Medium Sep 8, 2026
CVE-2026-66305 Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network 7.1 High Sep 8, 2026
CVE-2026-63523 Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an… 6.5 Medium Sep 8, 2026
CVE-2026-66306 Generation of error message containing sensitive information in Skype for Business allows an unauthorized attacker to… 6.5 Medium Sep 8, 2026
CVE-2026-66308 Out-of-bounds read in Skype for Business allows an authorized attacker to deny service over a network 6.5 Medium Sep 8, 2026
CVE-2026-66302 External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a… 9.8 Critical Sep 8, 2026
CVE-2026-66304 Server-side request forgery (ssrf) in Skype for Business allows an unauthorized attacker to disclose information over… 7.5 High Sep 8, 2026

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