CVE-2025-53809 - Vulnerability Details - OpenCVE

Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53809

History

Tue, 09 Sep 2025 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 09 Sep 2025 17:15:00 +0000

Type	Values Removed	Values Added
Description		Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.
Title		Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Weaknesses		CWE-20
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53809
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2025-09-09T17:01:16.552Z

Updated: 2025-09-09T22:39:07.539Z

Reserved: 2025-07-09T13:40:07.628Z

Link: CVE-2025-53809

Vulnrichment

Updated: 2025-09-09T18:00:32.637Z

NVD

Status : Received

Published: 2025-09-09T17:15:52.163

Modified: 2025-09-09T17:15:52.163

Link: CVE-2025-53809

Redhat

No data.

OpenCVE Enrichment

No data.

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