CVE-2026-8810 HDD Password leakage vulnerability
Attackers can retrieve HDD passwords from UEFI variables on ARM platforms, exposing sensitive credentials in InsydeH2O firmware.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-8810?
CVE-2026-8810 is a medium-severity vulnerability in InsydeH2O, InsydeH2O ARM, published on 19 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
On ARM platforms, a vulnerability in the architecture design of HDD Password could allow an attacker to retrieve HDD Password from UEFI variables.
Weakness: CWE-522
Which versions are affected by CVE-2026-8810?
How do I fix CVE-2026-8810?
No fix has been published for CVE-2026-8810 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8810 being exploited?
There is no known exploitation of CVE-2026-8810 in the wild and no public exploit code.
Sources
Also known as GHSA-4fhc-754f-qxmh.