# CVE-2026-69443: Windows Device Health Attestation (DHA) Information Disclosure Vulnerability

CVE-2026-69443 is fixed in 8 products on 1 platform, first by KB5122876, released September 8, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-69443
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0103
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Sep 8, 2026
- Weakness: Out-of-bounds Read
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69443

## Description

<p>Out-of-bounds read in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to disclose information over a network.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.9245 | [KB5122876](https://patchblox.com/security/data/fix/microsoft/kb5122876.md) | Sep 8, 2026 |
| Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.9245 | [KB5122876](https://patchblox.com/security/data/fix/microsoft/kb5122876.md) | Sep 8, 2026 |
| Microsoft | Windows Server 2019 | 17763.9245 | [KB5122876](https://patchblox.com/security/data/fix/microsoft/kb5122876.md) | Sep 8, 2026 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.9245 | [KB5122876](https://patchblox.com/security/data/fix/microsoft/kb5122876.md) | Sep 8, 2026 |
| Microsoft | Windows Server 2022 | 20348.5622 | [KB5122882](https://patchblox.com/security/data/fix/microsoft/kb5122882.md) | Sep 8, 2026 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.5622 | [KB5122882](https://patchblox.com/security/data/fix/microsoft/kb5122882.md) | Sep 8, 2026 |
| Microsoft | Windows Server 2025 | 26100.33438 | [KB5122871](https://patchblox.com/security/data/fix/microsoft/kb5122871.md) | Sep 8, 2026 |
| Microsoft | Windows Server 2025 (Server Core installation) | 26100.33438 | [KB5122871](https://patchblox.com/security/data/fix/microsoft/kb5122871.md) | Sep 8, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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