CVE-2026-45328
ESF-IDF: Out-of-Bounds Write in ESP-TEE Secure Service Wrappers
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.
INFO
Published Date :
June 10, 2026, 2:16 a.m.
Last Modified :
June 10, 2026, 2:16 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update ESF-IDF to version 5.5.5 or later.
- Update ESF-IDF to version 6.0.1 or later.
- Apply security patches to the esp_tee component.
- Review secure-service wrapper implementations.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-45328.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-45328 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-45328
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-45328 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-45328 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jun. 10, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-20 Added CWE CWE-787 Added Reference https://github.com/espressif/esp-idf/commit/145ba4c42dc8283054cfde9a1c3470db7399192f Added Reference https://github.com/espressif/esp-idf/commit/440a5d1906502023f2a0fb0aecbdf0602d14acbf Added Reference https://github.com/espressif/esp-idf/commit/764626a1b7c85b943d207da08a2f8f7d7f3def4d Added Reference https://github.com/espressif/esp-idf/commit/7867f4a57560bf9fc4a931e37ba02b7a3e9f406b Added Reference https://github.com/espressif/esp-idf/commit/afd14ab113acd0ca369965404c99ac42e74d4fcd Added Reference https://github.com/espressif/esp-idf/commit/eebabaff2fdc273b1530fe66e55fb3bcd181dfd6 Added Reference https://github.com/espressif/esp-idf/security/advisories/GHSA-mmgp-73p4-92xp