VULNERABILITY INTELLIGENCE

CVE-2020-29379

CVSS score5.5 MEDIUM

EPSS probability0.32%

CISA KEVNot currently listed

Published2020-11-29

Last modified2026-06-17

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

Description

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.

Weakness classification

nvd@nist.gov: CWE-306

Primary references

cve@mitre.org — Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Mailing List, Third Party Advisory