CVE-2026-96321 Remote Desktop Display Driver Information Disclosure Vulnerability
An authorized local attacker can exploit an out-of-bounds read in the Remote Desktop Display Driver to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96321?
CVE-2026-96321 is a medium-severity vulnerability in Microsoft Windows 10 21h2, published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out-of-bounds read in Remote Desktop Display Driver allows an authorized attacker to disclose information locally.
Weakness: CWE-125
Which versions are affected by CVE-2026-96321?
It affects 9 products.
Products include Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2, Microsoft Windows 11 26h1 and 3 more.
How do I fix CVE-2026-96321?
No fix has been published for CVE-2026-96321 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-96321 being exploited?
There is no known exploitation of CVE-2026-96321 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 21h2
- CVE-2025-21333 Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow
- CVE-2025-21334 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2025-21335 Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free
- CVE-2026-42904 Windows TCP/IP Elevation of Privilege Vulnerability
- CVE-2026-105733 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-hv53-8grr-5h6m.