Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
Turns out this tweet thread of mine ended up getting CVE-2026-6484 and Insyde SA-2026003. I've also worked with several OEMs to correctly address the vulnerability, but it sadly remains in quantum superposition of fixed and unfixed until the BIOS image is observed by UEFITool NE.
Post summary
The tweet mentions CVE-2026-6484 but provides no technical details, exploit code, or patch information, leaving its status unclear.
Case in point for the quantum thing: Lenovo lists CVE-2026-6484 as fixed for some new images, out of which some are truly fixed (additional volumes are removed or hashed/verified), some are partially fixed (one volume is removed or hashed/verified, the one one remains vulnerable)
Post summary
Lenovo has applied fixes for CVE‑2026‑6484, with some firmware images fully patched and others partially patched by removing hashed volumes.