SB2025101512 - Multiple vulnerabilities in Microsoft Windows Local Session Manager (LSM)

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Improper Validation of Specified Type of Input (CVE-ID: CVE-2025-58729)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of specified type of input in Windows Local Session Manager (LSM). A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) Improper Validation of Specified Type of Input (CVE-ID: CVE-2025-59257)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of specified type of input in Windows Local Session Manager (LSM). A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

3) Improper Validation of Specified Type of Input (CVE-ID: CVE-2025-59259)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of specified type of input in Windows Local Session Manager (LSM). A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-58729
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-59257
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-59259