CVE-2026-13491: xiaozhi-esp32 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6

CVE-2026-13491. CVSS 3.1 base score 3.7 (LOW, Vendor/CNA). EPSS 0.00624 (percentile 0.49306), scored 24-Oct-2026.

Affected technology

xiaozhi-esp32 · 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6
78

Description’s affected range: up to 2.2.6

Component: MQTT Goodbye Handler
Function: Application::GetInstance
File: main/protocols/mqtt_protocol.cc

Attack conditions (VulDB, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could disrupt service. VulDB’s CVSS 4.0 assessment (base score 2.9/10) rates confidentiality and integrity impact as none; availability impact as low.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-404
CCR priority: 15.0 /100 (P5)
CVSS 3.1: 3.7 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L · Vendor/CNA
EPSS: 0.00624 · percentile 0.49601 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-13491.html