Is CVE-2026-84696 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-84696?

CVE-2026-84696 has a CVSS v3 severity of HIGH (8.2).

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CVE-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.