CVE-2026-66306 Skype for Business Information Disclosure Vulnerability Generation of error message containing sensitive information in Skype for Business allows an unauthorized attacker to disclose information over a network. EPSS 0.01 CVE-2026-66306 US tg: zranitelnost 8. 9. 2026 · zachyceno 19:32 · Microsoft Security · CVE-2026-66306 Skype for Business Information Disclosure Vulnerability