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). An attacker on the local network segment able to reach the Mochad TCP bridge (default port 1099, no authentication) can send a crafted packet that overflows tempRFSECbuf by up to several hundred bytes, corrupting the Domoticz worker thread's stack.
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History
Wed, 05 Aug 2026 17:30:00 +0000
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ssvc
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Wed, 05 Aug 2026 15:30:00 +0000
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Domoticz
Domoticz domoticz |
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Domoticz
Domoticz domoticz |
Wed, 05 Aug 2026 13:15:00 +0000
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| 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). An attacker on the local network segment able to reach the Mochad TCP bridge (default port 1099, no authentication) can send a crafted packet that overflows tempRFSECbuf by up to several hundred bytes, corrupting the Domoticz worker thread's stack. | |
| Title | Domoticz MochadTCP Stack Buffer Overflow via MOCHAD_RFSEC strcpy() | |
| Weaknesses | CWE-121 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: TuranSec
Published:
Updated: 2026-08-05T15:30:10.335Z
Reserved: 2026-08-05T12:23:34.967Z
Link: CVE-2026-71265
Updated: 2026-08-05T15:30:06.406Z
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OpenCVE Enrichment
Updated: 2026-08-05T15:15:05Z
Weaknesses