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Microsoft Skype for Business Server Subscription Edition CU1 vulnerabilities

13 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 13 published in the last 12 months.

Check whether your Microsoft Skype for Business Server Subscription Edition CU1 version is affected

Latest Microsoft Skype for Business Server Subscription Edition CU1 vulnerabilities

• CVE-2026-85873 — Skype for Business Elevation of Privilege Vulnerability (CVSS 6.5)
• CVE-2026-83746 — Skype for Business Elevation of Privilege Vulnerability (CVSS 8.1)
• CVE-2026-70297 — Skype for Business Remote Code Execution Vulnerability (CVSS 8.8)
• CVE-2026-66302 — Skype for Business Remote Code Execution Vulnerability (CVSS 9.8)
• CVE-2026-66307 — Skype for Business and Lync Denial of Service Vulnerability (CVSS 7.5)
• CVE-2026-66303 — Skype for Business and Lync Denial of Service Vulnerability (CVSS 6.5)
• CVE-2026-69646 — Skype for Business Spoofing Vulnerability (CVSS 8.3)
• CVE-2026-69642 — Skype for Business Spoofing Vulnerability (CVSS 6.1)
• CVE-2026-66305 — Skype for Business Spoofing Vulnerability (CVSS 7.1)
• CVE-2026-63523 — Skype for Business Spoofing Vulnerability (CVSS 6.1)
• CVE-2026-66308 — Skype for Business and Lync Denial of Service Vulnerability (CVSS 6.5)
• CVE-2026-66306 — Skype for Business Information Disclosure Vulnerability (CVSS 6.5)
• CVE-2026-66304 — Skype for Business Information Disclosure Vulnerability (CVSS 7.5)