Microsoft QUIC Denial of Service Vulnerability
CVE-2023-36435

7.5HIGH

Key Information:

Vendor

Microsoft
Status
Powershell 7.3
Windows Server 2022
Windows 11 Version 21h2
Windows 11 Version 22h2
Vendor
CVE Published:
10 October 2023

What is CVE-2023-36435?

A vulnerability in Microsoft QUIC could allow an attacker to exploit the service, leading to a denial of service condition. This could disrupt network functions and affect system performance. It is crucial for users and administrators to apply the recommended updates and mitigations to safeguard against potential exploitation.

Affected Version(s)

.NET 7.0 Unknown 7.0.0 < 7.0.13

PowerShell 7.3 Unknown 7.3.0 < 7.3.9

Windows 11 version 21H2 x64-based Systems 10.0.0 < 10.0.22000.2538

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-36435 : Microsoft QUIC Denial of Service Vulnerability