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Fencer Vulns
high 7.8

CVE-2021-41334 json

Windows Desktop Bridge Elevation of Privilege Vulnerability

published 2021-10-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28363

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

Windows Desktop Bridge Elevation of Privilege Vulnerability

Patch / fix

  • Microsoft Windows 10 Version 21H1 10.0.19043.1288
  • Microsoft Windows Server 2022 10.0.20348.288
  • Microsoft Windows 10 Version 2004 10.0.19041.1288
  • Microsoft Windows Server version 2004 10.0.19041.1288
  • Microsoft Windows 10 Version 20H2 10.0.19042.1288
  • Microsoft Windows Server version 20H2 10.0.19042.1288
  • Microsoft Windows 11 version 21H2 10.0.22000.258

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Microsoft Windows 10 Version 21H1
  • Microsoft Windows Server 2022
  • Microsoft Windows 10 Version 2004
  • Microsoft Windows Server version 2004
  • Microsoft Windows 10 Version 20H2
  • Microsoft Windows Server version 20H2
  • Microsoft Windows 11 version 21H2

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.