CVE Vulnerabilities

CVE-2022-21919

Improper Link Resolution Before File Access ('Link Following')

Published: Jan 11, 2022 | Modified: Oct 30, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
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Windows User Profile Service Elevation of Privilege Vulnerability

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

NameVendorStart VersionEnd Version
Windows_10_1507Microsoft*10.0.10240.19177 (excluding)
Windows_10_1607Microsoft*10.0.14393.4886 (excluding)
Windows_10_1809Microsoft*10.0.17763.2452 (excluding)
Windows_10_1909Microsoft*10.0.18363.2037 (excluding)
Windows_10_20h2Microsoft*10.0.19042.1466 (excluding)
Windows_10_21h1Microsoft*10.0.19043.1466 (excluding)
Windows_10_21h2Microsoft*10.0.19044.1466 (excluding)
Windows_11_21h2Microsoft*10.0.22000.434 (excluding)
Windows_7Microsoft–sp1 (including)–sp1 (including)
Windows_8.1Microsoft- (including)- (including)
Windows_rt_8.1Microsoft- (including)- (including)
Windows_server_2008Microsoft–sp2 (including)–sp2 (including)
Windows_server_2008Microsoftr2-sp1 (including)r2-sp1 (including)
Windows_server_2012Microsoft- (including)- (including)
Windows_server_2012Microsoftr2 (including)r2 (including)
Windows_server_2016Microsoft*10.0.14393.4886 (excluding)
Windows_server_2019Microsoft*10.0.17763.2452 (excluding)
Windows_server_2022Microsoft*10.0.20348.469 (excluding)
Windows_server_20h2Microsoft*10.0.19042.1466 (excluding)

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References