CVE tracker / CVE-2026-69443
CVE-2026-69443
CVE-2026-69443 is the Windows Device Health Attestation (DHA) Information Disclosure Vulnerability. Microsoft rates it Important, CVSS 7.5. It is not in CISA's Known Exploited Vulnerabilities catalog. Published September 8, 2026.
Risk summary
Microsoft describes it: “Out-of-bounds read in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to disclose information over a network.”
How to fix it
Microsoft lists 8 affected products and the update that fixes each:
- KB5122871 · fixed build 10.0.26100.33438
Windows Server 2025, Windows Server 2025 (Server Core installation) - KB5122876 · fixed build 10.0.17763.9245
Windows Server 2019 (Server Core installation), Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows 10 Version 1809 for 32-bit Systems - KB5122882 · fixed build 10.0.20348.5622
Windows Server 2022 (Server Core installation), Windows Server 2022
What Microsoft changed
- September 8, 2026: Information published.
Details
- Weakness
- CWE-125: Out-of-bounds Read
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- September 8, 2026
- Last revised
- September 8, 2026
Get told when this changes
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References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.