CVE-2026-45542
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ESF-IDF: Heap buffer overflow in protocomm Security2 over Bluetooth
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
esp-idf
- Vendor
- espressif
- Product
- esp-idf
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| = 5.2.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 5.3.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 5.4.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 5.5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |