CVE-2020-29381: Vsolcn v1600d-Mini Firmware

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600D4L V1.01.49, V1600D-MINI V1.01.48, V1600G1 V2.0.7 and V1.9.7, and V1600G2 V1.1.4 OLT devices. Command injection can occur in "upload tftp syslog" and "upload tftp configuration" in the CLI via a crafted filename.

Affected products

• Vsolcn v1600d-Mini Firmware: version 1.01.48 only
• Vsolcn v1600d4l Firmware: version 1.01.49 only
• Vsolcn v1600d Firmware: version 2.03.57 only; version 2.03.69 only
• Vsolcn v1600g1 Firmware: version 1.9.7 only; version 2.0.7 only
• Vsolcn v1600g2 Firmware: version 1.1.4 only

Published 2020-11-29. Last modified 2026-06-17.