CVE-2026-84696Phison PS3111-S11 Controller Firmware Missing Authentication on Vendor Unique Commands
Updated under an hour ago ()
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It affects Phison Electronics Corporation PS3111-S11 Controller Firmware. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Phison Electronics Corporation PS3111-S11 Controller Firmware phison_electronics:ps3111_s11_controller_firmware (from the name) | SBFQT1.3 | CNA record |
References
- https://trulycrisp.github.io/drivefirmware/phison_s11/technical-description
- https://github.com/trulycrisp/psychiteexploit
- https://github.com/trulycrisp/disksecexploit
- https://www.vulncheck.com/advisories/phison-ps3111-s11-controller-firmware-missing-authentication-on-vendor-unique-commandsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.