78 xiaozhi-esp32 MQTT Goodbye mqtt_protocol.cc GetInstance denial of service
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.3epss 0.4%
exploitation probability
0.4%top 66% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqtt_protocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument session_id results in denial of service. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is stated that the exploitability is difficult. The exploit is now public and may be used. The patch is named e182471f8c5a22434346bd98da34d3b66c8c8b3e. It is recommended to apply a patch to fix this issue.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
78 · xiaozhi-esp32public PoCs found — 1
cve_referencegithub.com/78/xiaozhi-esp32/issues/2022unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/78/xiaozhi-esp32/https://github.com/78/xiaozhi-esp32/commit/e182471f8c5a22434346bd98da34d3b66c8c8b3ehttps://github.com/78/xiaozhi-esp32/issues/2022https://github.com/78/xiaozhi-esp32/pull/2023https://vuldb.com/cve/CVE-2026-13491https://vuldb.com/submit/838439https://vuldb.com/vuln/374488https://vuldb.com/vuln/374488/cti