CVE-2026-84696

HighCVSS 8.2/10Last modified Sep 10, 2026

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.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-306

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Sep 2, 2026
Last modified: Sep 10, 2026
NVD status: Awaiting Analysis

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