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Critical · 9.3 CVE-2026-45328 EUVD-2026-35916

ESF-IDF: Out-of-Bounds Write in ESP-TEE Secure Service Wrappers

Published Jun 10, 2026 · Updated Jun 10, 2026 · Assigned by GitHub_M

Description

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.4 and 6.0, the esp_tee component exposes secure-service wrappers in esp_secure_services.c and esp_secure_services_iram.c that bridge calls from the user application (i.e. the REE) to TEE-protected hardware peripherals (AES, SHA, ECC, HMAC, SPI, MMU, WDT) and to the security feature like attestation, OTA updates, secure storage. This issue has been patched in versions 5.5.5 and 6.0.1.

Affected products

VendorProductAffectedFixed
espressif esp-idf = 5.5.4, = 6.0 —

References