CVE-2026-45500
Microsoft Exchange Server Spoofing vulnerability
MSRC advisory June 9, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-45500
- Affected products
- Microsoft Exchange Server Spoofing · Microsoft Microsoft Exchange Server Spoofing · Microsoft
What happened
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
What it means for your business
Microsoft Exchange Server Spoofing vulnerability (CVE-2026-45500) was added to Microsoft’s security update guidance. Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network. If you need help checking exposure, call (864) 335-9223.
Sources
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