MEDIUM Microsoft Corporation Vulnerability Alert

Product:

Windows Local Session Manager

Summary

Improper validation of specified type of input in Windows Local Session Manager allows an authorized attacker to deny service over a network. This vulnerability can lead to significant disruptions in service availability. Attackers with low privileges can exploit this flaw to impact the system’s functionality.

Details

Severity Base Score CVE
MEDIUM 6.5 CVE-2025-59257

Exploitation

To exploit this vulnerability, an attacker must have authorized access to the network and can send specially crafted input to the Windows Local Session Manager. By doing so, they can trigger a denial of service condition, effectively disrupting the normal operation of the affected system.

Affected Products

  • Windows Local Session Manager: Vulnerable to denial of service attacks due to improper input validation.

Mitigation

To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Regularly updating systems and monitoring for unusual network activity can also help in reducing the risk of exploitation.

References