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,...