CyberSecBulletin

TrustedFirmware vulnerabilities

We track 13 vulnerabilities in TrustedFirmware products across 4 products. 12 are rated high or critical, and 1 has been exploited in real attacks. The most recent was published on August 26, 2026.

13vulnerabilities
3critical
9high
1exploited
8.0average CVSS score

Latest TrustedFirmware vulnerabilities

  • 7.0 High severity

    Trusted Firmware-M: Unverified Ownership

    CVE-2026-54467TrustedFirmware

    On the Trusted Firmware-M (TF-M) 2 through 2.3.0 platform before 00d1b3e, mailbox initialization on PSOC64 and RP2350 accepts a non-secure, unvalidated, supplied pointer.

  • 7.8 High severity

    optee_os: Use After Free

    CVE-2026-40290OP-TEE

    OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.16.0 and prior to 4.11.0, a user-after-free (UAF) race condition exists in t

  • 7.5 High severity

    optee_os: Integer Overflow or Wraparound

    CVE-2026-33662OP-TEE

    OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. From 3.8.0 to 4.10, in the function emsa_pkcs1_v1_5_encode() in core/drivers/crypto/crypto_api/aci

  • 8.7 High severity

    optee_os: Out-of-bounds Read

    CVE-2026-33317OP-TEE

    OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. In versions 3.13.0 through 4.10.0, missing checks in `entry_get_attribute_value()` in `ta/pkcs11/s

  • 7.5 High severity

    Mbed TLS: Out-of-bounds Read

    CVE-2026-34876TrustedFirmware

    An issue was discovered in Mbed TLS 3.x before 3.6.6. An out-of-bounds read vulnerability in mbedtls_ccm_finish() in library/ccm.c allows attackers to obtain adjacent CCM context data via invocation of the multipart CCM API with an oversized tag_len parameter.

  • 7.5 High severity

    Mbed TLS: NULL Pointer Dereference

    CVE-2026-34874TrustedFirmware

    An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0.

  • 9.8 Critical severity

    trusted_firmware-m: Buffer Copy without Checking Size of Input

    CVE-2024-45746TrustedFirmware

    An issue was discovered in Trusted Firmware-M through 2.1.0. User provided (and controlled) mailbox messages contain a pointer to a list of input arguments (in_vec) and output arguments (out_vec). These list pointers are never validated. Each argument list con

  • 9.8 Critical severity

    Mbed TLS: Improper Certificate Validation

    CVE-2024-45159TrustedFirmware

    An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional authentication of the client, if the client-provided certificate does not have appropriate values in if keyUsage or extKeyUsage extensions, then the return value

  • 9.8 Critical severity

    mbedtls: Stack-based Buffer Overflow

    CVE-2024-45158Mbed

    An issue was discovered in Mbed TLS 3.6 before 3.6.1. A stack buffer overflow in mbedtls_ecdsa_der_to_raw() and mbedtls_ecdsa_raw_to_der() can occur when the bits parameter is larger than the largest supported curve. In some configurations with PSA disabled, a

  • 7.5 High severity

    Trusted Firmware-m: Incorrect Comparison

    CVE-2023-40271TrustedFirmware

    In Trusted Firmware-M through TF-Mv1.8.0, for platforms that integrate the CryptoCell accelerator, when the CryptoCell PSA Driver software Interface is selected, and the Authenticated Encryption with Associated Data Chacha20-Poly1305 algorithm is used, with th

  • 7.4 High severity

    Trusted Firmware-a: Out-of-bounds Read

    CVE-2022-47630TrustedFirmware

    Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates. This affects downstream use of get_ext and auth_nvctr. Attackers might be able to trigger dangerous read side effects or obtain sensitive information ab

  • 8.8 High severity

    optee_os: Improper Validation of Array Index

    CVE-2022-46152OP-TEE

    OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vulnerability. The function `cleanup_shm_refs()` is called by both `entry_invoke_com

  • 5.5 Medium severity

    Arm Trusted Firmware Out-of-Bounds Write Exploited

    CVE-2021-27562TrustedFirmwareEPSS 3.06%

    In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an overwrite of secure data, or the printing out of secure data when calling secure functions under the NSPE handler mode.