216.73.216.226

CVE-2026-45541

· Published 10/06/2026 02:16 · Modified 11/06/2026 18:05

Labels: CVE-2026-45541 2026-06-10CVE-2026-45541CWE-476[email protected]

Essential information

Published
10/06/2026 02:16
Modified
11/06/2026 18:05
Author
—
Creator
—
CVSS
7.5 HIGH (v3.1)
CISA KEV
No
CWE
—
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS metrics

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 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.

NVD status

Status
Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
Source
[email protected]
NVD
View on NVD

Affected products (CPE)

ProductCPE
espressif / esp-idf cpe:2.3:a:espressif:esp-idf:5.2.6:*:*:*:*:*:*:*
espressif / esp-idf cpe:2.3:a:espressif:esp-idf:5.3.5:*:*:*:*:*:*:*
espressif / esp-idf cpe:2.3:a:espressif:esp-idf:5.4.4:*:*:*:*:*:*:*
espressif / esp-idf cpe:2.3:a:espressif:esp-idf:5.5.4:*:*:*:*:*:*:*
espressif / esp-idf cpe:2.3:a:espressif:esp-idf:6.0:*:*:*:*:*:*:*

References