Is there a public exploit for CVE-2026-113780?

No public exploit for CVE-2026-113780 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-113780?

CVE-2026-113780 scores CVSS 9.3 (v3.1), rated critical.

What does CVE-2026-113780 affect?

CVE-2026-113780 affects espressif esp-idf.

9.3 Critical

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework.

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 esptee trap entry in espteevectorsplic.S and espteevectorsclic.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.

Assessment

CVSS: 9.3 (v3.1)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 November 2026
Last updated: 5 November 2026
Affected: espressif · esp-idf
Assigner: GitHub_M

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

At the source

EUVD (ENISA)

References

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