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CVE-2026-53763

3.8 low SSVC exploitation: none Analyzed
NVD · CVE.org

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 3.0.0 and prior to version 4.11.0, 32-bit integer overflows in OP-TEE core's AES-GCM implementation cause the authentication tag to be computed with incorrect bit-length values after processing more than 512 megabytes of payload or Additional Authenticated Data (AAD). Version 4.11.0 contains a patch. No known workarounds are available.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 3.8 · trustedfirmwareNVD modified 2026-10-25 20:10

Affected (CPE criteria) 1

  • cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*

References 1