Permissions, Privileges, and Access Controls in Microsoft Windows and Windows Server - CVE-2021-26889
Published: March 9, 2021
Vulnerability identifier: #VU51316
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-26889
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Update Stack, which leads to security restrictions bypass and privilege escalation.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2021-26889
Install updates from vendor's website.