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-2025-33073 · Windows SMB Client Elevation of Privilege Vulnerability
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
Signals
Windows SMB
Elevation of Privilege
Exploited: No
Publicly disclosed: Yes
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 allows an authorized attacker to elevate privileges over a network.
FAQ / Articles
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.
FAQ
How could an attacker exploit this vulnerability? When multiple attack vectors can be used, we assign a score based on the scenario with the higher risk. In one such scenario for this vulnerability, the attacker could convince a victim to connect to an attacker controlled malicious application (for example, SMB) server. Upon connecting, the malicious server could compromise the protocol.
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.