CVE catalog

CVE-2026-45702

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 4.3.0 and prior to

[CVE catalog]

Severity
Medium · CVSS 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.15% · Oct 25, 2026

A flaw was found in OP-TEE OS, a Trusted Execution Environment (TEE) for Arm Cortex-A cores. A type confusion vulnerability exists when OP-TEE OS processes an FFA_MEM_SHARE request from the normal world. This flaw can be exploited by a local attacker with high privileges when OP-TEE is configured as a Secure Partition Manager Core (SPMC) for Secure EL0 Secure Partitions (S-EL0 SPs). Successful exploitation could lead to a denial of service. Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Cpeop-teeNot reportedNot reportedunknown
Debianoptee-os134.10.0-1vulnerable
Debianoptee-os134.10.0-2vulnerable
Debianoptee-os134.5.0-2vulnerable
Debianoptee-os134.7.0-1vulnerable
Debianoptee-os134.8.0-1vulnerable
Debianoptee-os134.9.0-1vulnerable

Fixed-version evidence

OpenFactory catalog packages

[Debian 13 (Trixie)]

  • [optee-os]Affected
    Details (1)
    • 4.5.0-2 · arm64 · trixie

      Affected

      nvd · optee-os · debian · 13

  • [optee-os-dev]Affected

    Source package: [optee-os]

    Details (1)
    • 4.5.0-2 · arm64 · trixie

      Affected

      nvd · optee-os · debian · 13

Observed:

References