CVE-2026-53763

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.

CVSS v3 3.8 LOW

3.8^/10

CVSS v3 : LOW

Vector : AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Exploitability : 2.0 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/OP-TEE/optee_os/security/advisories/GHSA-fcm8-vjhf-6vqh	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

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

History

07 Jul 2026, 18:53

Type	Values Removed	Values Added
CPE		cpe:2.3:o:trustedfirmware:op-tee::::::::
First Time		Trustedfirmware op-tee Trustedfirmware
References	~~() https://github.com/OP-TEE/optee_os/security/advisories/GHSA-fcm8-vjhf-6vqh -~~	() https://github.com/OP-TEE/optee_os/security/advisories/GHSA-fcm8-vjhf-6vqh - Vendor Advisory, Patch

06 Jul 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-06 20:16

Updated : 2026-07-07 18:53

NVD link : CVE-2026-53763

Mitre link : CVE-2026-53763

CVE.ORG link : CVE-2026-53763

JSON object : View

Products Affected

trustedfirmware

op-tee

CWE

CWE-190

Integer Overflow or Wraparound

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