Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
Microsoft
CVE-2026-83839 CVSS 7.0
2026-10-13 07:00 UTC · 2026-10-13 04:00 -03
Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
Insufficient verification of data authenticity in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.