Is CVE-2022-22047 in the CISA KEV catalog?

Yes. CVE-2022-22047 is on the CISA Known Exploited Vulnerabilities list, added 2022-07-12.

What is the CVSS severity of CVE-2022-22047?

CVE-2022-22047 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2022-22047?

CVE-2022-22047 has an EPSS score of 18.91% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2022-22047

HIGHCISA KEVEPSS 97th pctl

7.8

CVSS v3

NVD

Description

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

CWE-426

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

18.91%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability

Microsoft Windows CSRSS contains an unspecified vulnerability that allows for privilege escalation to SYSTEM privileges.

Apply updates per vendor instructions.

Remediation due: 2022-08-02

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-30.