CVE-2026-50463 Windows Kernel Information Disclosure Vulnerability
An out-of-bounds read in the Windows Kernel allows an unauthorized attacker to disclose sensitive information over a network.
- 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-2026-50463?
CVE-2026-50463 is a high-severity vulnerability in Microsoft Windows 10 1809, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Out-of-bounds read in Windows Kernel allows an unauthorized attacker to disclose information over a network.
Weakness: CWE-125
Which versions are affected by CVE-2026-50463?
It affects 9 products.
Products include Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2, Microsoft Windows 11 26h1 and 3 more.
How do I fix CVE-2026-50463?
No fix has been published for CVE-2026-50463 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-50463 being exploited?
There is no known exploitation of CVE-2026-50463 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1809
- CVE-2024-29988 Microsoft SmartScreen Prompt Security Feature Bypass
- CVE-2024-21412 Microsoft Windows Internet Shortcut Files Security Feature Bypass
- CVE-2025-62221 Microsoft Windows Use After Free
- CVE-2025-30400 Microsoft Windows DWM Core Library Use-After-Free
- CVE-2024-21338 Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control
Sources
Also known as GHSA-4gmx-836j-jvhf.