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

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Summary

CVECVE-2026-45328
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-10 02:16:32 UTC
Updated2026-06-10 02:16:32 UTC
DescriptionESF-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.

Risk And Classification

Primary CVSS: v3.1 9.3 CRITICAL from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-20 | CWE-787 | CWE-20 CWE-20: Improper Input Validation | CWE-787 CWE-787: Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.3CRITICALCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED9.3CRITICALCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Espressif Esp-idf affected = 5.5.4 Not specified
CNA Espressif Esp-idf affected = 6.0 Not specified

References

ReferenceSourceLinkTags
github.com/espressif/esp-idf/commit/afd14ab113acd0ca369965404c99ac42e74d... [email protected] github.com
github.com/espressif/esp-idf/commit/145ba4c42dc8283054cfde9a1c3470db7399... [email protected] github.com
github.com/espressif/esp-idf/security/advisories/GHSA-mmgp-73p4-92xp [email protected] github.com
github.com/espressif/esp-idf/commit/7867f4a57560bf9fc4a931e37ba02b7a3e9f... [email protected] github.com
github.com/espressif/esp-idf/commit/eebabaff2fdc273b1530fe66e55fb3bcd181... [email protected] github.com
github.com/espressif/esp-idf/commit/440a5d1906502023f2a0fb0aecbdf0602d14... [email protected] github.com
github.com/espressif/esp-idf/commit/764626a1b7c85b943d207da08a2f8f7d7f3d... [email protected] github.com
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