Denial of service in Microsoft Windows TCP/IP



Published: 2021-10-12
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-36953
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU57298

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-36953

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Windows TCP/IP. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 S, 7, 8.1 - 8.1 RT, 11 21H2

Windows Server: 2008 - 2019 2004


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36953


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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