Unauthenticated information disclosure via undisclosed Netlogon flaw
Published Jul 11, 2023 · Updated Jan 1, 2025
An information disclosure flaw in Microsoft Windows Netlogon allows remote attackers to expose sensitive data over the network. Microsoft has not published the affected Netlogon operation or explained how crafted network input produces the disclosure. Exploitation requires no privileges or user interaction but has high attack complexity; the exact data exposed remains undisclosed.
Summary
What happened
An information disclosure flaw in Microsoft Windows Netlogon allows remote attackers to expose sensitive data over the network. Microsoft has not published the affected Netlogon operation or explained how crafted network input produces the disclosure. Exploitation requires no privileges or user interaction but has high attack complexity; the exact data exposed remains undisclosed.
The record
- CVE
- CVE-2023-21526
- Published
- Jul 11, 2023
- Updated
- Jan 1, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 11, 2023CVE publishedPublication date reported by the CVE source.
- Jan 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.20048
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.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo