CVE-2020-29379

5.5 mediumEPSS 0.3%

Medium (5.5) in vsolcn. EPSS 0.3% chance of exploitation in the next 30 days.

An issue was discovered on V-SOL V1600D4L V1.01.49 and V1600D-MINI V1.01.48 OLT devices. During the process of updating the firmware, the update script starts a telnetd -l /bin/sh process that does not require authentication for TELNET access.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-11-01)
CWE: CWE-306
Published: 2020-11-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

vsolcn:v1600d-mini_firmware
vsolcn:v1600d4l_firmware

References

https://seclists.org/fulldisclosure/2020/Jul/14
https://seclists.org/fulldisclosure/2020/Jul/14

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