High MSRC-CVE-2021-34476 1 CVE

Bowser.sys Denial of Service Vulnerability

Published Jul 13, 2021 · Updated Jul 14, 2021 · Revision 2

Vendor: Microsoft

Summary

Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.17763.2061 — https://support.microsoft.com/help/5004244
10.0.18363.1679 — https://support.microsoft.com/help/5004245
10.0.19043.1110 — https://support.microsoft.com/help/5004237
10.0.10240.19003 — https://support.microsoft.com/help/5004249
10.0.14393.4530 — https://support.microsoft.com/help/5004238
6.1.7601.25661 — https://support.microsoft.com/help/5004289
6.1.7601.25661 — https://support.microsoft.com/help/5004307
6.3.9600.20069 — https://support.microsoft.com/help/5004298
6.3.9600.20069 — https://support.microsoft.com/help/5004285
6.0.6003.21167 — https://support.microsoft.com/help/5004305
6.0.6003.21167 — https://support.microsoft.com/help/5004299
6.2.9200.23409 — https://support.microsoft.com/help/5004294
6.2.9200.23409 — https://support.microsoft.com/help/5004302

Vulnerabilities 1

High 7.5

CVE-2021-34476

Bowser.sys Denial of Service Vulnerability

Bowser.sys Denial of Service Vulnerability

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows

Jul 14, 2021

Revision history

2021-07-14 #2
Added acknowledgements. This is an informational change only.
2021-07-13 #1
Information published.

References

CVE-2021-34476 Bowser.sys Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34476
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss