What is CVE-2026-45702?

CVE-2026-45702 is a medium-severity vulnerability in Linaro Op-tee, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 4.4/10. Published 2026-06-03.

How severe is CVE-2026-45702?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Linaro Op-tee

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 version 4.11.0, a type confusion vulne…

EPSS: 0.000 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linaro Op-tee
Op-tee Optee_os — versions >= 4.3.0, < 4.11.0
Trustedfirmware Op-tee

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-45702?: CVE-2026-45702 is a medium-severity vulnerability in Linaro Op-tee, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 4.4/10. Published 2026-06-03.
How severe is CVE-2026-45702?: Medium severity. CVSS v3 base score is 4.4 out of 10.