CVE-2022-22047Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability
- 7.8HighCVSS base score
- 18.3%Exploitation in 30 daysEPSS · top 2.7% of all CVEs
- YesKnown exploitedin CISA's KEV since 12 Jul 2022
- YesPublic exploitsa reference or SSVC says so
Description
Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability.
- Added
- 12 Jul 2022
- Fix due (US federal)
- 2 Aug 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 12 Jul 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By microsoft
- 7 months later
· 7 months later
Published
Added to CISA KEV
Known exploited in the wild
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 18.3% · top 2.7% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.3165
Microsoft · Windows 10 Version 1809
- affected 10.0.0 – < 10.0.17763.3165
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.3165
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.3165
Microsoft · Windows 10 Version 21H1
- affected 10.0.0 – < 10.0.19043.1826
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.825
Microsoft · Windows 10 Version 20H2
- affected 10.0.0 – < 10.0.19042.1826
Microsoft · Windows Server version 20H2
- affected 10.0.0 – < 10.0.19042.1826
Microsoft · Windows 11 version 21H2
- affected 10.0.0 – < 10.0.22000.795
Microsoft · Windows 10 Version 21H2
- affected 10.0.19043.0 – < 10.0.19044.1826
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < 10.0.10240.19360
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.5246
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.5246
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.5246
- affected 6.1.0 – < 6.1.7601.26022
Microsoft · Windows 7 Service Pack 1
- affected 6.1.0 – < 6.1.7601.26022
- affected 6.3.0 – < 6.3.9600.20478
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.21569
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)
- affected 6.0.6003.0 – < 6.0.6003.21569
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.21569
Microsoft · Windows Server 2008 R2 Service Pack 1
- affected 6.1.7601.0 – < 6.1.7601.26022
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected 6.1.7601.0 – < 6.1.7601.26022
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < 6.2.9200.23771
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < 6.2.9200.23771
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.20478
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.20478
References
References2
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-27201 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-22047)Record last updated .