CVE-2026-77893
Windows DHCP Server Denial of Service vulnerability
MSRC advisory September 8, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-77893
- Affected products
- Windows DHCP Server Denial of Service · Microsoft Windows DHCP Server Denial of Service · Microsoft
What happened
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
What it means for your business
Windows DHCP Server Denial of Service vulnerability (CVE-2026-77893) was added to Microsoft’s security update guidance. Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network. If you need help checking exposure, call (864) 335-9223.
Sources
Related briefs
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Need help patching?
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