CVE-2026-113780

ESF-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.

• CWE-787
• CWE-822

• https://github.com/espressif/esp-idf/commit/773761abb893d43d0a5b8b75ec0a1c2cf0287d53
• https://github.com/espressif/esp-idf/commit/acb7d996b07293abf591b93f4aaffa04ae6732d9
• https://github.com/espressif/esp-idf/commit/b85a7b0e1449ac9aec30a0c3e3b6515725556fd1
• https://github.com/espressif/esp-idf/commit/dabd37fae8d2a7b1cc71f48fce824b0b9d909a07
• https://github.com/espressif/esp-idf/releases/tag/v5.5.6
• https://github.com/espressif/esp-idf/security/advisories/GHSA-49x8-xqjg-2pjg

Published

Nov 4, 2026

Last Modified

Nov 5, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-11375IBM MQ could allow an authenticated attacker to cause a deni…8.8
• CVE-2026-11376IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.4…8.8
• CVE-2026-113775A maliciously crafted dynamic library, when loaded from an a…7.8
• CVE-2026-113776virtualenv is a tool for creating isolated virtual python en…7.8
• CVE-2026-113779The pfSense REST API package is an unofficial, open-source R…8.8
• CVE-2026-11378IBM MQ could allow an authenticated attacker to cause a deni…8.8
• CVE-2026-113782ESP-IDF is the Espressif Internet of Things (IOT) Developmen…7.1
• CVE-2026-113783ESP-IDF is the Espressif Internet of Things (IOT) Developmen…7.4
• CVE-2026-113786pypdf is a free and open-source pure-python PDF library. Pri…2.3
• CVE-2026-113787odf-kit allows users to generate, fill, read, and convert Op…6.1
• CVE-2026-113788Lagoon is an application delivery platform for Kubernetes. V…9.4
• CVE-2026-113789pypdf is a free and open-source pure-python PDF library. Pri…3.3