Is CVE-2026-113780 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-113780 being exploited in the wild.

How severe is CVE-2026-113780?

Critical severity, with a CVSS score of 9.3, published 4 November 2026.

Which products and versions are affected?

Espressif ESP-IDF 5.5.5 until 5.5.6, 6.0.4, 6.1.1; Espressif ESP32-C5 all; Espressif Esp32-C6 all; Espressif ESP32-C61 all; and 1 more.

Is there a fix for CVE-2026-113780?

Yes: fixed in ESP-IDF 5.5.6, 6.0.4, 6.1.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-113780 attacked?

It is attacked with local access, in device firmware.

Am I affected by CVE-2026-113780?

Check whether you run Espressif ESP-IDF, Espressif ESP32-C5, Espressif Esp32-C6 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-113780: Espressif ESP-IDF privilege escalation in TEE trap entry

CVE-2026-113780 · Severity: critical · CVSS 9.3 · Published 2026-11-04

ESP-IDF is a development framework for Espressif IoT microcontrollers. A flaw in the trusted execution environment (TEE) trap entry code allows a local unprivileged application to write to TEE-exclusive memory, bypassing the isolation boundary between trusted and untrusted code. An attacker can corrupt TEE control-flow data to achieve code execution, denial of service, or system crashes on affected ESP32 devices.

Technologies: Espressif ESP-IDF. Vendors: Espressif.

Quick answers

Is CVE-2026-113780 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-113780 being exploited in the wild.
How severe is CVE-2026-113780?: Critical severity, with a CVSS score of 9.3, published 4 November 2026.
Which products and versions are affected?: Espressif ESP-IDF 5.5.5 until 5.5.6, 6.0.4, 6.1.1; Espressif ESP32-C5 all; Espressif Esp32-C6 all; Espressif ESP32-C61 all; and 1 more.
Is there a fix for CVE-2026-113780?: Yes: fixed in ESP-IDF 5.5.6, 6.0.4, 6.1.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-113780 attacked?: It is attacked with local access, in device firmware.
Am I affected by CVE-2026-113780?: Check whether you run Espressif ESP-IDF, Espressif ESP32-C5, Espressif Esp32-C6 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: ESP-IDF 5.5.6, 6.0.4, 6.1.1

Technical details

The esp_tee trap entry in esp_tee_vectors_plic.S and esp_tee_vectors_clic.S saves a caller-controlled register frame via a REE-supplied stack pointer before validating the pointer or switching to the trusted TEE stack. A local unprivileged REE application can direct this write to TEE-exclusive memory on affected devices, breaking REE/TEE isolation. Both secure-service ecall and interrupt entry paths are vulnerable.

Affected products

Espressif ESP-IDF 5.5.5 until 5.5.6, 6.0.4, 6.1.1
Espressif ESP32-C5 all
Espressif ESP32-C6 all
Espressif ESP32-C61 all
Espressif ESP32-H2 all

Timeline

2026-11-04: disclosed

References

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