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CVE-2022-21919: Microsoft Windows User Profile Service Privilege Escalation Vulnerability

CVSS: 7.0v3.1HighKEVAnalyzed
Published 11-01-2022Last modified 21-10-2025
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Vulnerability summary

CVE-2022-21919 is a high (CVSS 7.0) Link Following vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 25-04-2022. EPSS estimates a 2.43% chance of exploitation in the next 30 days, higher than 84% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.0/10
010
High · v3.1 (CVE.org)
EPSS score
2.43%
0%100%
Low · -0.54 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-01-2022
    PublishedVulnerability first disclosed.
  2. 25-04-2022
    Added to CISA KEVMicrosoft Windows User Profile Service Privilege Escalation Vulnerability
  3. 16-05-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

Windows User Profile Service Elevation of Privilege Vulnerability

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.43%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

-0.54 pp

From 2.97% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.43%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
25-04-2022
Federal due date
16-05-2022

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2022-21919

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft37 products

1 vendor · 37 products

References

3 links