CVE-2026-66304High· 7.5▾ TwilightServer-side request forgery (ssrf) in Skype for Business allows an unauthorized attacker to disclose information over a network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.7%
Last analysed / modified upstream
Server-side request forgery (ssrf) in Skype for Business allows an unauthorized attacker to disclose information over a network.
skype_for_business_server = 2015skype_for_business_server = 2019skype_for_business_server_subscription_edition = 7.0.2046.849Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2021-26855Critical· 9.1Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-34473Critical· 9.1Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2026-85917High· 7.5Server-side request forgery (ssrf) in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-66302Critical· 9.8External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.
CVE-2026-66308Medium· 6.5Out-of-bounds read in Skype for Business allows an authorized attacker to deny service over a network.
CVE-2026-63523Medium· 6.5Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an unauthorized attacker to perform spoofing over a network.