Improper exposure of TEE secure-service wrappers in ESP-IDF esp_tee
CVE-2026-45328 affects Espressif ESP-IDF in versions 5.5.4 and 6.0. The esp_tee component exposes secure-service wrappers implemented in esp_secure_services.c and esp_secure_services_iram.c. These wrappers bridge calls from the user application running in the Rich Execution Environment (REE) to TEE-protected hardware peripherals, including AES, SHA, ECC, HMAC, SPI, MMU, and WDT, as well as security-sensitive features such as attestation, OTA updates, and secure storage. Based on the available information, the vulnerability consists of unintended exposure of interfaces that mediate access from the non-secure application environment to trusted services and protected hardware resources. Specific root-cause details, affected functions beyond the named source files, and exploit mechanics are not currently available.
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Impact
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Mitigation
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Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Recent activity
6 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
The version that knows your environment.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.