Technology · Espressif
Espressif ESP-IDF vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 6 vulnerabilities in Espressif ESP-IDF: 0 in the last 7 days and 5 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-113783, was published on 4 November 2026. 4 vulnerabilities in the last four weeks, up 300% on the four before (1). 1 critical against 0.
- Last 7 days
- 0
- Last 90 days
- 5
- Critical, all time
- 2
- Exploited in the wild
- 0
About Espressif ESP-IDF
Embedded development framework and toolchain for ESP32 and ESP8266 microcontrollers.
Latest Espressif ESP-IDF vulnerabilities
- CVE-2026-113783: Espressif ESP-IDF DNS buffer overflow in lwIPhighCVSS 7.4
- CVE-2026-113782: ESP-IDF OpenThread Border Router buffer overflow in Neighbor DiscoveryhighCVSS 7.1
- CVE-2026-113780: Espressif ESP-IDF privilege escalation in TEE trap entrycriticalCVSS 9.3
- CVE-2026-81507: Espressif ESP-IDF BlueDroid L2CAP out-of-bounds readmediumCVSS 6.5EPSS 0.3%
- CVE-2026-81508: Espressif ESP-IDF out-of-bounds read in BlueDroid A2DP sinkmediumCVSS 4.3EPSS 0.2%
- CVE-2025-66409: ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and…criticalCVSS 9.1EPSS 0.6%
Most severe Espressif ESP-IDF vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-113780: Espressif ESP-IDF privilege escalation in TEE trap entrycriticalCVSS 9.3
- CVE-2025-66409: ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and…criticalCVSS 9.1EPSS 0.6%
- CVE-2026-113783: Espressif ESP-IDF DNS buffer overflow in lwIPhighCVSS 7.4
- CVE-2026-113782: ESP-IDF OpenThread Border Router buffer overflow in Neighbor DiscoveryhighCVSS 7.1
- CVE-2026-81507: Espressif ESP-IDF BlueDroid L2CAP out-of-bounds readmediumCVSS 6.5EPSS 0.3%
- CVE-2026-81508: Espressif ESP-IDF out-of-bounds read in BlueDroid A2DP sinkmediumCVSS 4.3EPSS 0.2%
Vulnerabilities per week
4 vulnerabilities in the last four weeks, up 300% on the four before (1). 1 critical against 0. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 1 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 3 | 1 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Espressif ESP-IDF vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/espressif-esp-idf)<a href="https://junglewise.ai/threats/technologies/espressif-esp-idf"><img src="https://junglewise.ai/threats/technologies/espressif-esp-idf/badge.svg" alt="Espressif ESP-IDF vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/espressif-esp-idf.json, and this page as text at https://junglewise.ai/threats/technologies/espressif-esp-idf.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Espressif ESP-IDF vulnerabilities", https://junglewise.ai/threats/technologies/espressif-esp-idf, 13 November 2026.