ESF-IDF: Unvalidated Stack Pointer at the ESP-TEE Privilege-Switch Boundary

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-113780
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-04 19:17:18 UTC
Updated2026-11-05 19:17:09 UTC
DescriptionESF-IDF is the Espressif Internet of Things (IOT) Development Framework. From 5.5.5 until 5.5.6, 6.0.4, and 6.1.1, the esp_tee trap entry in esp_tee_vectors_plic.S and esp_tee_vectors_clic.S saves a caller-controlled register frame through the REE-supplied stack pointer before switching to the trusted TEE stack or validating the pointer. A local unprivileged REE application can direct this machine-mode write into TEE-exclusive memory on ESP32-C5, ESP32-C6, ESP32-C61, and ESP32-H2 devices, breaking the REE/TEE isolation boundary and potentially corrupting TEE control-flow data for code execution, denial of service, or system crashes. Both secure-service ecall and interrupt entry paths contain the vulnerable ordering. This issue is fixed in version 5.5.6 and is scheduled to be fixed in versions 6.0.4 and 6.1.1.

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

EPSS: 0.001410000 probability, percentile 0.034830000 (date 2026-11-05)

Problem Types: CWE-787 | CWE-822 | CWE-787 CWE-787: Out-of-bounds Write | CWE-822 CWE-822: Untrusted Pointer Dereference

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 < 5.5.6 Not specified
CNA Espressif Esp-idf affected >= 6.0.0, < 6.0.4 Not specified
CNA Espressif Esp-idf affected >= 6.1.0, < 6.1.1 Not specified

References

ReferenceSourceLinkTags
github.com/espressif/esp-idf/releases/tag/v5.5.6 [email protected] github.com
github.com/espressif/esp-idf/commit/773761abb893d43d0a5b8b75ec0a1c2cf028... [email protected] github.com
github.com/espressif/esp-idf/security/advisories/GHSA-49x8-xqjg-2pjg [email protected] github.com
github.com/espressif/esp-idf/commit/b85a7b0e1449ac9aec30a0c3e3b651572555... [email protected] github.com
github.com/espressif/esp-idf/commit/dabd37fae8d2a7b1cc71f48fce824b0b9d90... [email protected] github.com
github.com/espressif/esp-idf/commit/acb7d996b07293abf591b93f4aaffa04ae67... [email protected] github.com
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