CVE-2026-71967 OP-TEE OS 4.10.0 NULL Pointer Dereference DoS via Widevine PTA open_session

OP-TEE OS through 4.10.0, fixed in commit 0aadfc2, contains a null pointer dereference vulnerability in the Widevine pseudo-TA opensession handler that allows Normal World clients to cause a denial of service when CFGWIDEVINEPTA is enabled. Attackers can open a session directly on the Widevine PT...

CVE-2026-71967

OP-TEE OS through 4.10.0, fixed in commit 0aadfc2, contains a null pointer dereference vulnerability in the Widevine pseudo-TA opensession handler that allows Normal World clients to cause a denial of service when CFGWIDEVINEPTA is enabled. Attackers can open a session directly on the Widevine PT...

CVE-2026-71967

OP-TEE OS 4.10.0 contains a null pointer dereference in the Widevine PTA open_session handler. When CFG_WIDEVINE_PTA is enabled, Normal World clients can trigger an unconditional NULL dereference via is_user_ta_ctx(), crashing the TEE at S-EL1 and causing a Denial of Service. The issue is fixed i...

EUVD-2026-55696

OP-TEE OS through 4.10.0, fixed in commit 0aadfc2, contains a null pointer dereference vulnerability in the Widevine pseudo-TA opensession handler that allows Normal World clients to cause a denial of service when CFGWIDEVINEPTA is enabled. Attackers can open a session directly on the Widevine PT...

CVE-2026-71967 OP-TEE OS 4.10.0 NULL Pointer Dereference DoS via Widevine PTA open_session

OP-TEE OS through 4.10.0, fixed in commit 0aadfc2, contains a null pointer dereference vulnerability in the Widevine pseudo-TA opensession handler that allows Normal World clients to cause a denial of service when CFGWIDEVINEPTA is enabled. Attackers can open a session directly on the Widevine PT...

CVE-2026-71967 OP-TEE OS 4.10.0 NULL Pointer Dereference DoS via Widevine PTA open_session

OP-TEE OS through 4.10.0, fixed in commit 0aadfc2, contains a null pointer dereference vulnerability in the Widevine pseudo-TA opensession handler that allows Normal World clients to cause a denial of service when CFGWIDEVINEPTA is enabled. Attackers can open a session directly on the Widevine PT...

PT-2026-69901

Name of the Vulnerable Software and Affected Versions OP-TEE OS versions prior to 4.10.0 commit 0aadfc2 Description A null pointer dereference occurs in the Widevine pseudo-TA open session handler when CFG WIDEVINE PTA is enabled. Normal World clients can trigger this by opening a session directl...