CVE-2026-13489

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

Published Jun 28, 2026 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title 78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization
First Time appeared 78
78 xiaozhi-esp32
Weaknesses CWE-662
CPEs cpe:2.3:a:78:xiaozhi-esp32:*:*:*:*:*:*:*:*
Vendors & Products 78
78 xiaozhi-esp32
References
Metrics cvssV2_0

{'score': 2.1, 'vector': 'AV:N/AC:H/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.1, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 2.3, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Jun 29, 2026, 1:01 PM
Reserved
Jun 27, 2026, 3:50 PM
Status
Deferred
Published
Jun 28, 2026, 12:17 PM
Modified
Oct 25, 2026, 5:10 PM