CVE-2021-33768High· 8.0▾ TwilightMicrosoft Exchange Server Elevation of Privilege Vulnerability
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 44 · likelihood 0.2 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
1.2%
1.2% → 1.3%
Microsoft Exchange Server Elevation of Privilege Vulnerability
exchange_server = 2016exchange_server = 2019Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2025-64666High· 7.5Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2025-64667Medium· 5.3User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-96940High· 8.8Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-69641Critical· 9.1Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-69356Critical· 9.3Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-69361Medium· 6.5Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.