What’s Vulnerable › Vulnerabilities

CVE-2026-71265: Domoticz MochadTCP Stack Buffer Overflow via MOCHAD_RFSEC strcpy()

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-05 · updated 2026-08-26
• Weakness: CWE-121

Description

Domoticz's MochadTCP::MatchLine handler for MOCHAD_RFSEC messages (hardware/MochadTCP.cpp) copies network-received data from the up-to-1028-byte m_mochadbuffer into a fixed 50-byte stack buffer tempRFSECbuf using strcpy with no length check, across three separate code branches (DS10A/KR10A/MS10A device types).

Affected products

• Domoticz: all versions

References

• https://github.com/domoticz/domoticz
• https://github.com/domoticz/domoticz/blob/master/hardware/MochadTCP.cpp

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