CVE-2026-83666

HighCVSS 7.0/10Last modified Oct 14, 2026

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-362

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 14, 2026
NVD status
Awaiting Analysis

Related CVEs from 2026

CVE-2026-836676.5Out-of-bounds read in Active Directory Domain Services allows an authorized attacker to deny service over a network.CVE-2026-836685.5Out-of-bounds read in Windows WLAN Service allows an authorized attacker to disclose information locally.CVE-2026-836697.8Use of uninitialized resource in Windows Error Reporting allows an authorized attacker to elevate privileges locally.CVE-2026-83675.3aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated CVE-2026-836707.5Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.CVE-2026-836716.5Out-of-bounds read in Windows Hyper-V allows an authorized attacker to disclose information locally.CVE-2026-836724.7Exposure of sensitive system information to an unauthorized control sphere in Windows Installer allows an authorized attacker to disclose inCVE-2026-836748.1Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.CVE-2026-836757.0Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-836767.0Integer underflow (wrap or wraparound) in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-836777.5Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over a network.CVE-2026-836787.8Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.