CVE-2026-45542
HIGH SEVERITYCVSS Score & Metrics
Base Score
7.1 / 10
Vector String
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Vulnerability Description
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 first-phase handler (handle_session_command0() in components/protocomm/src/security/security2.c) trusts the length of a client-supplied protobuf field for the SRP6a username and copies it into a buffer whose size is derived from a narrower destination type. The resulting truncation-versus-copy asymmetry corrupts the heap when an oversized value is supplied. This issue has been patched in versions 5.2.7, 5.3.6, 5.4.5, 5.5.5, and 6.0.1.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-122
Source
NVD
Vendor
espressif
Product
esp-idf
External References
- https://github.com/espressif/esp-idf/commit/0ea58d79845ad674d0358d5de246015a68c4cb4f
- https://github.com/espressif/esp-idf/commit/56c3e385611e63162d0f2f8504ac4ae2ccfccef0
- https://github.com/espressif/esp-idf/commit/71eb2dbe6aaef830719ecac8edf409e2992b64b2
- https://github.com/espressif/esp-idf/commit/9b4cacf9cbc69379972de6a2247fcf5af9240961
- https://github.com/espressif/esp-idf/commit/a2f4554f10ba075c98cbc67464db096ba32497cf
- https://github.com/espressif/esp-idf/commit/f5d24a7e919bc5f447091479656b86da6762a103
- https://github.com/espressif/esp-idf/security/advisories/GHSA-9r76-858f-v6jh
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