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CVE-2026-62912

Microsoft Exchange Server Denial of Service vulnerability

Microsoft

MSRC advisory August 11, 2026

Alert details

Source feed
Microsoft MSRC
CVE ID
CVE-2026-62912
Affected products
Microsoft Exchange Server Denial of Service · Microsoft Microsoft Exchange Server Denial of Service · Microsoft

What happened

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.

What it means for your business

Microsoft Exchange Server Denial of Service vulnerability (CVE-2026-62912) was added to Microsoft’s security update guidance. Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network. If you need help checking exposure, call (864) 335-9223.

Sources

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