CVE-2026-84696EPSS p11.5%

CVE-2026-84696CVE-2026-84696

Description

Phison PS3111-S11 controller firmware versions through SBFQT1.3 expose privileged vendor unique commands over the ATA interface with absent or defeatable authentication mechanisms. Attackers can bypass the weak CRC-16 based unlock handshake or exploit builds with no VUC lock to read and write controller memory and raw flash, persisting implants across power cycles.

Scoring

CVSS 8.2 ()
VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS0.22% probability of exploitation · percentile 11.5% · 2026-10-05T12:00:23Z
Last modified2026-09-10
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.