Authenticated service interruption via null-pointer dereference
Published Aug 12, 2025 · Updated Feb 13, 2026
A null-pointer dereference in Windows LSASS allows remote authenticated users to interrupt authentication services over a network. Microsoft has not disclosed the affected request handler or the malformed input that reaches the null pointer. Low privileges and no user interaction are required, and successful exploitation affects service availability without reported data access or modification.
Summary
What happened
A null-pointer dereference in Windows LSASS allows remote authenticated users to interrupt authentication services over a network. Microsoft has not disclosed the affected request handler or the malformed input that reaches the null pointer. Low privileges and no user interaction are required, and successful exploitation affects service availability without reported data access or modification.
The record
- CVE
- CVE-2025-53716
- Published
- Aug 12, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-476, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 12, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.7678
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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