CVE-2018-20398: Skyworthdigital CM5100-440 Firmware

Critical severity, CVSS 9.8. EPSS: 2.1% chance of exploitation in the next 30 days.

Skyworth CM5100 V1.1.0, CM5100-440 V1.2.1, CM5100-511 4.1.0.14, CM5100-GHD00 V1.2.2, and CM5100.g2 4.1.0.17 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.

Affected products

• Skyworthdigital CM5100-440 Firmware: version 1.2.1 only
• Skyworthdigital CM5100-511 Firmware: version 4.1.0.14 only
• Skyworthdigital CM5100-GHD00 Firmware: version 1.2.2 only
• Skyworthdigital CM5100.G2 Firmware: version 4.1.0.17 only
• Skyworthdigital CM5100 Firmware: version 1.1.0 only

Published 2018-12-23. Last modified 2026-06-17.