CVE-2026-34334
Windows TCP/IP Elevation of Privilege vulnerability
MSRC advisory May 12, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-34334
- Affected products
- Windows TCP/IP Elevation of Privilege · Microsoft Windows TCP/IP Elevation of Privilege · Microsoft
What happened
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
What it means for your business
Windows TCP/IP Elevation of Privilege vulnerability (CVE-2026-34334) was added to Microsoft’s security update guidance. Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
EPSS probability
0.15%
Sources
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