What is CVE-2020-29382?

CVE-2020-29382 is a high-severity vulnerability in Vsolcn V1600d, classified under Use of Hard-coded Credentials. CVSS score: 7.8/10. Published 2020-11-29.

How severe is CVE-2020-29382?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Vsolcn V1600d

CVE-2020-29382

An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600G1 V2.0.7 and V1.9.7, and V1600G2 V1.1.4 OLT devices. A hardcoded RSA private key (specific to V1600D, V1600G1, and V1600G2) is contained in the firmware images.

Published 2020-11-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (23.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Vsolcn V1600d
Vsolcn V1600d Firmware — versions 2.03.57, 2.03.69
Vsolcn V1600g1
Vsolcn V1600g1 Firmware — versions 1.9.7, 2.0.7
Vsolcn V1600g2
Vsolcn V1600g2 Firmware — versions 1.1.4

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

seclists.org/fulldisclosure/2020/Jul/14 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-29382?: CVE-2020-29382 is a high-severity vulnerability in Vsolcn V1600d, classified under Use of Hard-coded Credentials. CVSS score: 7.8/10. Published 2020-11-29.
How severe is CVE-2020-29382?: High severity. CVSS v3 base score is 7.8 out of 10.