CVE-2026-45542

Published: Giu 10, 2026 Last Modified: Giu 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,1
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0033
Percentile
0,2th
Updated

EPSS Score Trend (Last 7 Days)

122

Heap-based Buffer Overflow

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Execute Unauthorized Code Or Commands Bypass Protection Mechanism Modify Memory Other
Applicable Platforms
Languages: Memory-Unsafe, C, C++
Likelihood of Exploit: High
View CWE Details
Application

Esp-Idf by Espressif

Product Information
Vendor Espressif
Product Esp-Idf
Version 5.5.4
cpe:2.3:a:espressif:esp-idf:5.5.4:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Esp-Idf by Espressif

Product Information
Vendor Espressif
Product Esp-Idf
Version 5.2.6
cpe:2.3:a:espressif:esp-idf:5.2.6:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Esp-Idf by Espressif

Product Information
Vendor Espressif
Product Esp-Idf
Version 5.3.5
cpe:2.3:a:espressif:esp-idf:5.3.5:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Esp-Idf by Espressif

Product Information
Vendor Espressif
Product Esp-Idf
Version 5.4.4
cpe:2.3:a:espressif:esp-idf:5.4.4:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Esp-Idf by Espressif

Product Information
Vendor Espressif
Product Esp-Idf
Version 6.0
cpe:2.3:a:espressif:esp-idf:6.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/espressif/esp-idf/commit/0ea58d79845ad67…
https://github.com/espressif/esp-idf/commit/0ea58d79845ad674d0358d5de246015a68c…
https://github.com/espressif/esp-idf/commit/56c3e385611e631…
https://github.com/espressif/esp-idf/commit/56c3e385611e63162d0f2f8504ac4ae2ccf…
https://github.com/espressif/esp-idf/commit/71eb2dbe6aaef83…
https://github.com/espressif/esp-idf/commit/71eb2dbe6aaef830719ecac8edf409e2992…
https://github.com/espressif/esp-idf/commit/9b4cacf9cbc6937…
https://github.com/espressif/esp-idf/commit/9b4cacf9cbc69379972de6a2247fcf5af92…
https://github.com/espressif/esp-idf/commit/a2f4554f10ba075…
https://github.com/espressif/esp-idf/commit/a2f4554f10ba075c98cbc67464db096ba32…
https://github.com/espressif/esp-idf/commit/f5d24a7e919bc5f…
https://github.com/espressif/esp-idf/commit/f5d24a7e919bc5f447091479656b86da676…
https://github.com/espressif/esp-idf/security/advisories/GH…
https://github.com/espressif/esp-idf/security/advisories/GHSA-9r76-858f-v6jh