CVE-2020-29381

Name: CVE-2020-29381
Creator: NVD / NIST
Published: 2020-11-29T01:15:11.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.32%

Last modified Jun 17, 2026

CVE-2020-29381 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.32%

81.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Vsolcn	V1600d Firmware	2.03.57
Vsolcn	V1600d Firmware	2.03.69
Vsolcn	V1600d4l Firmware	1.01.49
Vsolcn	V1600d-Mini Firmware	1.01.48
Vsolcn	V1600g1 Firmware	1.9.7
Vsolcn	V1600g1 Firmware	2.0.7
Vsolcn	V1600g2 Firmware	1.1.4

References

https://seclists.org/fulldisclosure/2020/Jul/14Mailing List, Third Party Advisory
https://seclists.org/fulldisclosure/2020/Jul/14Mailing List, Third Party Advisory

Timeline

Published: Nov 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29381?

How severe is CVE-2020-29381?

CVE-2020-29381 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.32% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29381?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-29381?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST