7.8

CVE-2022-22047: Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability

CVSS: 7.8v3.1HighKEVAnalyzed
Published 12-07-2022Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2022-22047 is a high (CVSS 7.8) Untrusted Search Path vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 12-07-2022. EPSS estimates a 18.77% chance of exploitation in the next 30 days, higher than 97.2% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
18.77%
0%100%
Medium · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-07-2022
    PublishedVulnerability first disclosed.
  2. 12-07-2022
    Added to CISA KEVMicrosoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability
  3. 02-08-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

18.77%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

0.00 pp

From 18.77% on 20-09-2026

20-09-202620-10-2026
EPSS score
18.77%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
12-07-2022
Federal due date
02-08-2022

CISA required action

Apply updates per vendor instructions. msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22047 nvd.nist.gov/vuln/detail/CVE-2022-22047

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft35 products

1 vendor · 35 products

References

2 links