VulnerabilityModified
CVE-2021-27077
Windows Win32k Elevation of Privilege Vulnerability
HIGH 7.8EPSS 1.44%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Windows Win32k Elevation of Privilege Vulnerability
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.44% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
- Source
- secure@microsoft.com
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27077
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27077Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-287/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-403/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-482/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-494/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-495/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-496/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-497/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-498/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-499/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-500/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-501/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.