Buffer overflow in Espressif Esp-idf
CVE-2026-45542
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.4, and 6.0, a heap buffer overflow exists in the Security Scheme 2 (SRP6a) session-setup path of the protocomm component. The fir…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (24.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Espressif Esp-idf — versions 5.2.6, 5.5.4, 5.3.5
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-45542?
- CVE-2026-45542 is a high-severity vulnerability in Espressif Esp-idf, classified under Heap-based Buffer Overflow. CVSS score: 7.1/10. Published 2026-06-10.
- How severe is CVE-2026-45542?
- High severity. CVSS v3 base score is 7.1 out of 10.