Urgent Vulnerability in Windows Server 2025 dMSA Poses Risk of Active Directory Breach
May 22, 2025
Cybersecurity / Vulnerability
A critical privilege escalation flaw has been identified in Windows Server 2025, allowing attackers to compromise any user within Active Directory (AD). According to Akamai security researcher Yuval Gordon, the vulnerability exploits the Delegated Managed Service Account (dMSA) feature introduced in Windows Server 2025. This attack can be executed easily with the default configuration, posing a significant threat to organizations relying on AD. “In 91% of the environments we examined, users outside of the domain admin group possessed the necessary permissions to carry out this attack,” Gordon noted in a report shared with The Hacker News. The vulnerability takes advantage of the dMSA feature designed to facilitate migration from legacy service accounts and intended to mitigate Kerberoasting attacks. The attack technique has been dubbed “BadSuccessor” by the researchers.
Cybersecurity / Vulnerability
Critical Vulnerability in Windows Server 2025 Poses Risk to Active Directory Security May 22, 2025 In a significant cybersecurity development, researchers have identified a privilege escalation vulnerability in Windows Server 2025 that threatens the integrity of Active Directory (AD). This…