CVE-2023-21526 Windows Netlogon Information Disclosure Vulnerability
An attacker can exploit a flaw in Windows Netlogon to disclose sensitive information, affecting multiple Windows client and server versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21526?
CVE-2023-21526 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 11 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Windows Netlogon Information Disclosure Vulnerability
Which versions are affected by CVE-2023-21526?
It affects 12 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2 and 6 more.
How do I fix CVE-2023-21526?
No fix has been published for CVE-2023-21526 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-21526 being exploited?
There is no known exploitation of CVE-2023-21526 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-7pjm-g8hr-8rg2.