CVE-2026-69443 Windows Device Health Attestation (DHA) Information Disclosure Vulnerability
An out-of-bounds read in Windows Device Health Attestation allows unauthorized attackers to disclose sensitive information over the 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-2026-69443?
CVE-2026-69443 is a high-severity vulnerability in Microsoft Windows 10 1809, published on 8 Sep 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 Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to disclose information over a network.
Weakness: CWE-125
Which versions are affected by CVE-2026-69443?
It affects 4 products.
Products include Microsoft Windows 10 1809, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025.
How do I fix CVE-2026-69443?
No fix has been published for CVE-2026-69443 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-69443 being exploited?
There is no known exploitation of CVE-2026-69443 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-m98g-6wgm-9688.