Windows SMB Elevation of Privilege Vulnerability
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
MSRC compact vulnerability detail
CVE-2025-58726 · Windows SMB Server Elevation of Privilege Vulnerability
Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
Signals
Windows SMB Server
Elevation of Privilege
Exploited: No
Publicly disclosed: No
Exploitability: Exploitation Less Likely
CWE
Patch Diff
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Resolved binary override
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Description
Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
FAQ / Articles
FAQ
How could an attacker exploit the vulnerability? To exploit this vulnerability, an attacker could execute a specially crafted script to coerce the victim machine to connect back to the attacker’s SMB Server using SMB and authenticate. This could result in elevation of privilege.
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Windows SMB Server Elevation of Privilege Vulnerability
Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
FAQ
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? The Attack requires an Service Principal Name (SPN) that is registered to an account that no longer exists or is not in use, to be on the target machine.