CVE-2024-43447: Windows SMBv3 Server Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 8.1)
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2024-Nov
Released
2024-11-12
EPSS Score
1.54% (percentile: 81.4%)

FAQ

How could an attacker exploit this vulnerability? To successfully exploit this vulnerability, an attacker would need to use a malicious SMB client to mount an attack against the SMB server. This exploit is only applicable to SMB over QUIC. According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to gather information specific to the environment and take additional actions prior to exploitation to prepare the target environment.

Affected Products (2)

Windows

  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)

Security Updates (2)

Acknowledgments

Anonymous

Revision History

  • 2024-11-12: Information published.