CVE-2025-64666High· 7.5▾ TwilightImproper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.2 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
1.0%
Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
exchange_server = 2016exchange_server = 2019exchange_server_subscription_edition < 15.02.2562.035Upgrade past the affected range:
exchange_server_subscription_edition 15.02.2562.035Connected by shared product, vendor, weakness, or advisory.
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-2026-97769High· 8.8Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2015-2466Critical· 9.3Microsoft Office 2007 SP3, 2010 SP2, 2013 SP1, and 2013 RT SP1 allows remote attackers to execute arbitrary code via a crafted template, aka "Microsoft Office Remote Code Execution Vulnerability."
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.