CVE-2026-84696
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.
Published:Sep 2, 2026
Last Modified:Sep 3, 2026
EPS:Sep 2, 2026
EPSS Score:0.00149
CVSS Score:8.2
Affected Products
Vendor
Product
Action
Vendor
Phison Electronics Corporation
Product
Ps3111-s11 Controller Firmware
Phison Electronics Corporation
Ps3111-s11 Controller Firmware
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
