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CVE-2022-22047

Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation

7.8 HIGHActively exploited (CISA KEV)EPSS 18.8%
  1. Published12 Jul 2022
  2. Added to CISA KEV12 Jul 2022
  3. Remediation due2 Aug 2022
Actively exploited (CISA KEV)

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

Added to KEV: 12 Jul 2022Federal remediation due: 2 Aug 2022

Description

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

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.19360
Microsoft Windows 10 1607< 10.0.14393.5246
Microsoft Windows 10 1809< 10.0.17763.3165
Microsoft Windows 10 20h2< 10.0.19042.1826
Microsoft Windows 10 21h1< 10.0.19043.1826
Microsoft Windows 10 21h2< 10.0.19044.1826
Microsoft Windows 11 21h2< 10.0.22000.795
Microsoft Windows 7all versions
Microsoft Windows 8.1all versions
Microsoft Windows Rt 8.1all versions
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016< 10.0.14393.5246
Microsoft Windows Server 2019< 10.0.17763.3165
Microsoft Windows Server 2022< 10.0.20348.825
Microsoft Windows Server 20h2< 10.0.19042.1826

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.19360
Microsoft Windows 10 1607≥ 10.0.14393.5246
Microsoft Windows 10 1809≥ 10.0.17763.3165
Microsoft Windows 10 20h2≥ 10.0.19042.1826
Microsoft Windows 10 21h1≥ 10.0.19043.1826
Microsoft Windows 10 21h2≥ 10.0.19044.1826
Microsoft Windows 11 21h2≥ 10.0.22000.795
Microsoft Windows Server 2016≥ 10.0.14393.5246
Microsoft Windows Server 2019≥ 10.0.17763.3165
Microsoft Windows Server 2022≥ 10.0.20348.825

References

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Frequently asked

Is CVE-2022-22047 being actively exploited?

Yes. CVE-2022-22047 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 12 Jul 2022.

How severe is CVE-2022-22047?

CVE-2022-22047 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 18.8% probability of exploitation.

Which products are affected by CVE-2022-22047?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 20h2, Microsoft Windows 10 21h1, and 11 more.

How do I fix CVE-2022-22047?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.19360, Microsoft Windows 10 1607 10.0.14393.5246, Microsoft Windows 10 1809 10.0.17763.3165 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-22047 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.