the-key-ships-with-the-lock-cve-2026-82876-phison-s11-ssd-firmware-signature-bypass

CVE-2026-82876 — Phison S11 SSD Firmware Signature Verification Bypass PoC Proof-of-concept for CVE-2026-82876 CVSS 3.1: 8.2 High / CVSS 4.0: 9.3 Critical, CWE-347: the Phison PS3111-S11 SATA SSD controller verifies firmware-update RSA signatures against a public modulus embedded inside the...

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...

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

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...

CVE-2026-84696

Phison PS3111-S11 controller firmware, in versions through SBFQT1.3 , exposes privileged vendor unique commands (VUC) over the ATA interface with absent or defeatable authentication. Attackers with local access can bypass a weak CRC-16 based unlock handshake or target builds lacking a VUC lock en...

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

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...

EUVD-2026-69787

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...

CVE-2026-82876

Phison PS3111-S11 controller firmware verifies RSA signatures using a public modulus embedded within the firmware image itself rather than anchored in immutable storage. Attackers can generate arbitrary RSA key pairs, sign modified firmware with the private key, embed the matching modulus in the...

EUVD-2026-68462

Phison PS3111-S11 controller firmware verifies RSA signatures using a public modulus embedded within the firmware image itself rather than anchored in immutable storage. Attackers can generate arbitrary RSA key pairs, sign modified firmware with the private key, embed the matching modulus in the...

CVE-2026-82876 Phison PS3111-S11 Controller Firmware Signature Verification Bypass

Phison PS3111-S11 controller firmware verifies RSA signatures using a public modulus embedded within the firmware image itself rather than anchored in immutable storage. Attackers can generate arbitrary RSA key pairs, sign modified firmware with the private key, embed the matching modulus in the...

CVE-2026-82876

CVE-2026-82876 affects the Phison PS3111-S11 SSD controller. The firmware's RSA signature verification uses a public modulus embedded within the firmware image rather than anchored in immutable storage. An attacker with local access (high privileges required) can generate arbitrary RSA key pairs,...

PT-2026-83780

Name of the Vulnerable Software and Affected Versions Phison PS3111-S11 controller firmware affected versions not specified Description The firmware verifies RSA signatures using a public modulus embedded within the firmware image instead of using one anchored in immutable storage. This allows an...