CVE-2022-21882 kev+ ransomware in the critical feed json
Win32k Elevation of Privilege Vulnerability
published 2022-01-11 4 y ago modified 2026-08-15 2 mo ago also EUVD-2022-27038
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-02-04, used in ransomware
- epss
- 59.2%
- EPSS 59.2% chance of exploitation in 30 days, percentile 99.1%
- public exploits
- 1
- Metasploit
Summary
Win32k Elevation of Privilege Vulnerability
Patch / fix
cisa required action Apply updates per vendor instructions.
- Microsoft Windows 10 Version 1809 10.0.17763.2452
- Microsoft Windows Server 2019 10.0.17763.2452
- Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.2452
- Microsoft Windows 10 Version 1909 10.0.18363.2037
- Microsoft Windows 10 Version 21H1 10.0.19043.1466
- Microsoft Windows Server 2022 10.0.20348.469
- Microsoft Windows 10 Version 20H2 10.0.19042.1466
- Microsoft Windows Server version 20H2 10.0.19042.1466
- Microsoft Windows 11 version 21H2 10.0.22000.434
- Microsoft Windows 10 Version 21H2 10.0.19044.1466
Timeline
- First public exploit (Metasploit exploit/windows/local/cve_2022_21882_win32k)
- CISA SSVC: exploitation active
- 0-day patched (Project Zero)
- Published
- Added to CISA KEV
- CISA patch deadline
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-02-18 (4 y ago)
- Ransomware
- Known to be used in ransomware campaigns
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Microsoft, Win32k
- CISA name
- Microsoft Win32k Privilege Escalation Vulnerability
Zero-day
Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.
- Patched
- 2022-01-11
- Details
- project zero root cause analysis
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 y ago
Exploit prediction
59.20% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/windows/local/cve_2022_21882_win32k Win32k ConsoleControl Offset Confusion metasploit exploit, average rank, 2021-02-09
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows 10 Version 1909
- Microsoft Windows 10 Version 21H1
- Microsoft Windows Server 2022
- Microsoft Windows 10 Version 20H2
- Microsoft Windows Server version 20H2
- Microsoft Windows 11 version 21H2
- Microsoft Windows 10 Version 21H2
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2022-21882
vendor-advisory, patch
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2022-21882
patch, vendor-advisory
-
packetstormsecurity.com
/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html
third-party-advisory, vdb-entry
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21882
government-resource, us-government-resource
Sources
- CVE List CVE-2022-21882
- NVD CVE-2022-21882
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.