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Fencer Vulns
high 7.8

CVE-2021-22907 json

An improper access control vulnerability exists in Citrix Workspace App for Windows potentially allows privilege escalation in CR versions…

published 2021-05-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10036

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

An improper access control vulnerability exists in Citrix Workspace App for Windows potentially allows privilege escalation in CR versions prior to 2105 and 1912 LTSR prior to CU4.

Patch / fix

  • citrix workspace 19.12.4000, 2105

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 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 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • n/a Citrix Workspace App for Windows

Classification

Weakness
Technology feeds

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.