CVE-2026-8810
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HDD Password Retrieval Vulnerability in UEFI Variables on ARM

Publication date: 2026-08-19

Last updated on: 2026-08-31

Assigner: Insyde

Description
On ARM platforms, a vulnerability in the architecture design of HDD Password could allow an attacker to retrieve HDD Password from UEFI variables.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-31
Generated
2026-09-09
AI Q&A
2026-08-19
EPSS Evaluated
2026-09-07
NVD
CVE-2026-8810
EUVD
EUVD-2026-62294

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
insyde insydeh2o to 6.9 (exc)
insyde insydeh2o From 5.6 (inc) to 5.7 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-522 The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

Attack-Flow Graph

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Executive Summary

This vulnerability is a design flaw in the HDD Password feature of InsydeH2O firmware versions 6.9 and earlier on ARM platforms. It allows an attacker with local access to retrieve the HDD Password stored in UEFI variables, potentially compromising stored data.

Detection Guidance

Check InsydeH2O firmware versions for 6.9 or earlier on ARM platforms. Use UEFI variable inspection tools like 'efivar' or 'fwupdmgr' to examine HDD Password storage. Compare firmware against Insyde's provided fixes (Kernel versions 05.63.21 or 05.72.21).

Impact Analysis

An attacker could gain unauthorized access to your system by retrieving the HDD Password, leading to data theft, unauthorized modifications, or system disruption. This requires physical or local access to the device.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance penalties if data breaches occur due to this flaw.

Mitigation Strategies

Update InsydeH2O firmware to versions 05.63.21 (Kernel 5.6) or 05.72.21 (Kernel 5.7) immediately. Restrict local access to systems. Monitor UEFI variables for unauthorized changes. Apply Insyde's security patches as soon as possible.

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