CVE-2025-53779: Windows Kerberos Elevation of Privilege Vulnerability

Overview

Severity
High (CVSS 7.2)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Publicly Disclosed
Yes
Patch Tuesday
2025-Aug
Released
2025-08-12
EPSS Score
0.51% (percentile: 66.4%)

Description

Relative path traversal in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

FAQ

According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability? To successfully exploit this vulnerability, an attacker would need to have elevated access to certain attributes of the dMSA, specifically: msds-groupMSAMembership: This attribute allows the user to utilize the dMSA. msds-ManagedAccountPrecededByLink: The attacker needs write access to this attribute, which allows them to specify a user that the dMSA can act on behalf of. What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could gain domain administrator privileges.

Detection & Weaponization (1 sources)

Maturity: Exploit

  • GitHub PoC: 1 repositories

Affected Products (2)

Windows

  • Windows Server 2025 (Server Core installation)
  • Windows Server 2025

Security Updates (2)

Acknowledgments

<a href="https://x.com/yug0rd">Yuval Gordon</a> with Akamai

Revision History

  • 2025-08-12: Information published.