# CVE-2026-69454: Microsoft Azure Attestation service out-of-bounds read

Source: https://junglewise.ai/threats/cve-2026-69454-out-of-bounds-read-in-microsoft-azure-attestation-service-and  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-69454 · Severity: high · CVSS 7.5 · Published 2026-10-13

Microsoft Azure Attestation service and Device Health Attestation Service contain an out-of-bounds read vulnerability that allows an attacker to read sensitive information over the network. This could expose confidential data such as attestation credentials or health information that should be protected. No special authentication or user interaction is required to exploit this vulnerability.

Technologies: [Microsoft Azure Attestation](https://junglewise.ai/threats/technologies/azure-attestation), [Microsoft Device Health Attestation Service](https://junglewise.ai/threats/technologies/device-health-attestation-service). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-69454 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69454 being exploited in the wild.

**How severe is CVE-2026-69454?** High severity, with a CVSS score of 7.5, published 13 October 2026.

**Which products and versions are affected?** Microsoft Azure Attestation; Microsoft Device Health Attestation Service.

**Is there a fix for CVE-2026-69454?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-69454 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-69454?** Check whether you run Microsoft Azure Attestation or Microsoft Device Health Attestation Service. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An out-of-bounds read vulnerability exists in the Azure Attestation service and Device Health Attestation Service, allowing an unauthenticated network attacker to read memory beyond intended bounds. The vulnerability enables information disclosure of potentially sensitive attestation or device health data. The flaw can be triggered remotely without authentication.

## Affected products

- Microsoft Azure Attestation
- Microsoft Device Health Attestation Service

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69454](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69454)

## Related threats

- [Microsoft Azure Attestation out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-69577-out-of-bounds-read-in-microsoft-azure-attestation-service-and)
- [Microsoft Azure Attestation out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-69443-microsoft-azure-attestation-out-of-bounds-read-information)
- [Microsoft Azure Attestation improper input validation spoofing vulnerability](https://junglewise.ai/threats/cve-2026-45642-microsoft-azure-attestation-improper-input-validation-spoofing)