CVE-2026-69454
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Windows Server 2019
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- Microsoft Windows Server 201910.0.17763.9376 or later
- Microsoft Windows Server 2019 (Server Core installation)10.0.17763.9376 or later
- Microsoft Windows Server 202210.0.20348.5761 or later
- Microsoft Windows Server 202510.0.26100.33650 or later
- Microsoft Windows Server 2025 (Server Core installation)10.0.26100.33650 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Windows Server 2019 | 10.0.17763.0 ≤ v < 10.0.17763.9376 | 10.0.17763.9376 |
| Microsoft Windows Server 2019 (Server Core installation) | 10.0.17763.0 ≤ v < 10.0.17763.9376 | 10.0.17763.9376 |
| Microsoft Windows Server 2022 | 10.0.20348.0 ≤ v < 10.0.20348.5761 | 10.0.20348.5761 |
| Microsoft Windows Server 2025 | 10.0.26100.0 ≤ v < 10.0.26100.33650 | 10.0.26100.33650 |
| Microsoft Windows Server 2025 (Server Core installation) | 10.0.26100.0 ≤ v < 10.0.26100.33650 | 10.0.26100.33650 |
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