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

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Summary

CVECVE-2026-45329
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, several ESP-TEE secure-service wrappers in esp_secure_services.c and esp_secure_services_iram.c validated only some of the caller-supplied pointer arguments, leaving input pointer arguments unchecked. Because the underlying TEE-protected hardware peripherals (e.g., ECC, SHA, SPI) run in RISC-V machine mode (M-mode) with full address-space access, a caller could supply pointers into TEE-exclusive memory as inputs, causing the peripheral to read TEE memory and return results derived from it to the REE. Depending on the wrapper, the result contains raw bytes from TEE memory, a computed function of TEE memory recoverable through repeated calls, or a single bit per call that forms an oracle for incremental disclosure of TEE-resident sensitive data. This issue has been patched in versions 5.5.5 and 6.0.1.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

Problem Types: CWE-20 | CWE-125 | CWE-200 | CWE-20 CWE-20: Improper Input Validation | CWE-125 CWE-125: Out-of-bounds Read | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
github.com/espressif/esp-idf/commit/145ba4c42dc8283054cfde9a1c3470db7399... [email protected] github.com
github.com/espressif/esp-idf/security/advisories/GHSA-w82j-7q63-7pqm [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
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