CVE-2026-13489CWE-662

78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization

Low · published June 28, 2026

CVSS v4.0
2.3
EPSS
0%
Percentile
27.7
In the wild
Unconfirmed
What it is

A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcp_server.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.

The record
Technical detail
CVSS v4.0
2.3 · LOW
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00347 · 27.7th percentile
Weakness
CWE-662 · Improper Synchronization
Published
2026-06-28T10:45Z
EPSS history
Timeline
  • 28 JUN 10:45Z
    78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization
    cvelistv5