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-2026-71969 OP-TEE OS 4.10.0 Buffer Underwrite via RSA NOPAD Encrypt/Decrypt Operations

OP-TEE OS through 4.10.0, fixed in commit 7b8b494, contains a buffer underwrite vulnerability in the RSA NOPAD encrypt and decrypt operations within the mbedTLS software backend and SE050 hardware driver that allows a malicious Trusted Application to corrupt secure-world heap memory by supplying ...

CVE-2026-71969

OP-TEE OS 4.10.0 contains a buffer underwrite in the RSA NOPAD encrypt/decrypt path (mbedTLS backend and SE050 driver). When src_len > rsa_len, the subtraction wraps to a large unsigned value, causing a memcpy to write attacker-controlled data into secure-world heap memory in S-EL1. The vulner...

CVE-2026-71968

OP-TEE OS through 4.10.0, fixed in commit 8794043, contains a use-after-free vulnerability in the Trusted Application loader that allows attackers with the ability to load a signed Trusted Application to corrupt secure-world kernel memory by setting the TAFLAGCONCURRENT flag in a user TA signed...

CVE-2026-71968

Technical details beyond the Initial Description are not publicly available in the provided documents. Monitor for updates.

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 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-2021-46795

A TOCTOU time-of-check to time-of-use vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service...

Out-of-bounds

A TOCTOU time-of-check to time-of-use vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service...

CVE-2021-46795

A TOCTOU time-of-check to time-of-use vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service...

CVE-2021-46795

CVE-2021-46795 is a TOCTOU vulnerability where a compromised BIOS can trigger the TEE OS to read memory out-of-bounds, potentially causing a denial of service. Public details consistently describe the affected component as the TEE/ASP-SMU hardware stack in AMD platforms with BIOS-based mitigation...

CVE-2021-46795

A TOCTOU time-of-check to time-of-use vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service...

PT-2023-12589 · Tee Os · Tee Os

Name of the Vulnerable Software and Affected Versions: TEE OS affected versions not specified Description: A TOCTOU time-of-check to time-of-use issue exists, allowing an attacker with a compromised BIOS to potentially cause the TEE OS to read memory out of bounds, resulting in a denial of servic...

Exploit for Race Condition in Linux Linux_Kernel

CVE-2021-44733: Fuzzing and exploitation of a use-after-free i...

CVE-2021-44149

An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. The OPTEE-OS CSU driver for NXP i.MX6UL SoC devices lacks security access configuration for wakeup-related registers, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write...

Design/Logic Flaw

An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. The OPTEE-OS CSU driver for NXP i.MX6UL SoC devices lacks security access configuration for wakeup-related registers, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write...

CVE-2021-44149

An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. The OPTEE-OS CSU driver for NXP i.MX6UL SoC devices lacks security access configuration for wakeup-related registers, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write...

The vulnerability of the map_ns_operation function in the TEE OS Trusted Core driver of the Huawei Mate 9 Pro mobile phone allows a hacker to cause a service failure.

The vulnerability of the mapnsoperation function in the TEE OS Trusted Core driver of Huawei Mate 9 Pro mobile phone’s microprogramming system is related to the assignment of an untrusted pointer. Exploiting this vulnerability could allow a malicious actor, operating locally, to trigger a service...