CVE-2026-45541

Published: Giu 10, 2026 Last Modified: Giu 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
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 NULL-pointer dereference exists in the WebSocket subprotocol-negotiation path of the esp_http_server component. While parsing the client-supplied Sec-WebSocket-Protocol request header during the WebSocket handshake, the tokenisation result is dereferenced without a NULL check, so a malformed header value can crash the server before any application-level authentication runs. 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
0,0044
Percentile
0,3th
Updated

EPSS Score Trend (Last 7 Days)

476

NULL Pointer Dereference

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands Read Memory Modify Memory
Applicable Platforms
Languages: C, C++, Java, C#, Go
Likelihood of Exploit: Medium
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/00a2f7fbbbd8fe6…
https://github.com/espressif/esp-idf/commit/00a2f7fbbbd8fe6d04729022e1d5c9a4943…
https://github.com/espressif/esp-idf/commit/0dc4ee7537f3b12…
https://github.com/espressif/esp-idf/commit/0dc4ee7537f3b12350f5966cecacd59bba8…
https://github.com/espressif/esp-idf/commit/37508ab91124ef4…
https://github.com/espressif/esp-idf/commit/37508ab91124ef426a7396d30f79eba1162…
https://github.com/espressif/esp-idf/commit/9fc0ca13b3b85b9…
https://github.com/espressif/esp-idf/commit/9fc0ca13b3b85b98d32b98cd9dc8ff9d826…
https://github.com/espressif/esp-idf/commit/dc46dc51359749e…
https://github.com/espressif/esp-idf/commit/dc46dc51359749e50617eb70d6f9ae298ad…
https://github.com/espressif/esp-idf/commit/f88a47e4f37fb11…
https://github.com/espressif/esp-idf/commit/f88a47e4f37fb11ae4b0908cd5c80059d83…
https://github.com/espressif/esp-idf/security/advisories/GH…
https://github.com/espressif/esp-idf/security/advisories/GHSA-3j8v-xgrq-5vg8