Input validation error in Windows Server - CVE-2021-34499
Published: July 13, 2021
Vulnerability identifier: #VU54748
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-34499
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows Server
Windows Server
Detailed vulnerability 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 the Windows DNS Server. A remote authenticated attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2021-34499
Install updates from vendor's website.