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Description

Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.

PUBLISHED Reserved 2025-09-11 | Published 2025-10-14 | Updated 2025-11-22 | Assigner microsoft




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Problem types

CWE-1287: Improper Validation of Specified Type of Input

Product status

10.0.26100.0 (custom) before 10.0.26100.6899
affected

10.0.26200.0 (custom) before 10.0.26200.6899
affected

10.0.25398.0 (custom) before 10.0.25398.1913
affected

10.0.26100.0 (custom) before 10.0.26100.6899
affected

10.0.26100.0 (custom) before 10.0.26100.6899
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59257 (Windows Local Session Manager (LSM) Denial of Service Vulnerability) vendor-advisory

cve.org (CVE-2025-59257)

nvd.nist.gov (CVE-2025-59257)

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