CVE-2021-41379
Windows Installer Elevation of Privilege Vulnerability
KEV RANSOMWAREHIGH 7.8EPSS 19.5%
Windows Installer Elevation of Privilege Vulnerability
- Affected
- Microsoft · Windows 10 Version 1507 · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 1909 · Windows 10 Version 2004 · Windows 10 Version 20H2
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 MICROSOFT
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 19.45% chance of exploitation in the next 30 days, 97th percentile
- CISA KEV
- added 2022-03-03, used in ransomware campaigns
- Published
- 2021-11-10
- Updated
- 2026-08-19
Proof-of-concept exploits (1)
- jbaines-r7/shakeitoff80★ · 2021-12-17
Security advisories
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-41379
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41379
- https://www.zerodayinitiative.com/advisories/ZDI-21-1308