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7.8

Windows Speech Runtime Elevation of Privilege Vulnerability

CVE-2021-28436 · published 5 years ago
Summary

Windows Speech Runtime Elevation of Privilege Vulnerability

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
microsoft windows_10 20h2
1607
1803
1809
1909
2004
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
microsoft windows_server_2016 20h2
1909
2004
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
microsoft windows_server_2019 All versions
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Original advisory text
Windows Speech Runtime Elevation of Privilege Vulnerability
Windows Speech Runtime Elevation of Privilege Vulnerability
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Timeline
Published13 Apr 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-28436 · NVD
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