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01 Record

CVE-2021-22907

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.

UnratedPUBLISHEDCNA: hackerone
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.23% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 14.8% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-05-27 11:14Z5 YR AGO
Last updated
2024-08-03 18:58Z2 YR AGO
Reserved
2021-01-06
Assigning CNA
hackerone
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-284Improper Access ControlPillar
Data version
5.1
Document digest
233af2147d246623de436d59ce31639757a5f70f0bf5e107588f2f062c96074a

05 Affected products

VendorProductVersionsPlatforms
n/aCitrix Workspace App for WindowsCitrix Workspace App for Windows 2105 and 1912 LTSR CU4—

06 References