CVE-2026-84696 - Phison PS3111-S11 Controller Firmware Missing Authentication on Vendor Unique Commands

CVE-2026-84696 - Phison PS3111-S11 Controller Firmware Missing Authentication on Vendor Unique Commands

https://cvefeed.io/rssfeed/latest.atom / Wed, 09/02/2026 - 07:29
CVE ID :CVE-2026-84696
Published : Sept. 2, 2026, 1:17 a.m. | 3 hours, 42 minutes ago
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.
Severity: 9.3 | CRITICAL
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.