Microsoft · Windows

CVE-2022-21919

Microsoft Windows User Profile Service Privilege Escalation Vulnerability

Evidence

Source & freshness

Full source status →

CISA KEV catalog Core KEV record

CVE, vendor/product, CISA dates, ransomware status, description, required action, and notes.

Catalog 2026.07.24 · Retrieved 2026-07-25 20:49 UTC Open official CISA feed ↗

MITRE CWE catalog CWE context

CWE names and plain-language weakness descriptions. CISA supplies the CWE assignment itself.

Retrieved 2026-07-25 20:59 UTC Open official MITRE CWE catalog ↗

National Vulnerability Database NVD technical context

CVSS metrics, NVD timeline, and related NVD record data are stored locally.

Retrieved Jul 25, 2026, 08:49 PM UTC Open NVD record ↗

CISA KEV record

CISA date added: 2022-04-25
CISA due date: 2022-05-16
Known ransomware use: Unknown

NVD risk context

7.0 HIGH

CVSS is a technical severity score. CISA’s KEV status remains the evidence that this vulnerability is known to be exploited.

View NVD record ↗

Attack vector

Local

An attacker needs local access to the affected system.

Attack complexity

High

Exploitation depends on conditions outside the attacker’s direct control.

Privileges required

Low

The attacker needs limited privileges before exploiting the issue.

User interaction

None

No action by another user is required.

Description

Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.

Required action

Apply updates per vendor instructions.

NVD reference index

Vendor and remediation references

NVD has tagged these sources as vendor advisories, patches, mitigations, or release notes.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21919 ↗
PatchVendor Advisory NVD reference source: secure@microsoft.com
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21919 ↗
Vendor Advisory NVD reference source: af854a3a-2127-422b-91ae-364da2661108

Other NVD references (1)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21919 ↗
US Government Resource NVD reference source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

MITRE CWE context

CWE classification

CWE-1386 Insecure Operation on Windows Junction / Mount Point

The product opens a file or directory, but it does not properly prevent the name from being associated with a junction or mount point to a destination that is outside of the intended control sphere.

View official MITRE CWE details ↗

NVD record timing

NVD record timeline

These dates describe NVD’s record, not CISA’s KEV addition or remediation due date.

NVD published: Jan 11, 2022, 09:15 PM UTC
NVD last updated: Jun 17, 2026, 04:27 AM UTC

Advanced: view the technical CVSS vector

This standardized code is intended for security tools and technical analysts. The plain-language risk summary above explains its main points.

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

View NVD record ↗

CISA notes

https://nvd.nist.gov/vuln/detail/CVE-2022-21919

https://nvd.nist.gov/vuln/detail/CVE-2022-21919