TI-2020-17658 Aliases CVE-2020-29377 GHSA-v37v-92mh-7r2f

An issue was discovered on V-SOL V1600D V2.03.69 OLT devices.

MEDIUM 45CWE-798Published 2020-11-29 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-798.

Summary

An issue was discovered on V-SOL V1600D V2.03.69 OLT devices. The string K0LTdi@gnos312$ is compared to the password provided by the the remote attacker. If it matches, access is provided.

Why it matters now

EPSS 0.01318 70th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:vsolcn:v1600d_firmware:2.03.69:::::::*	2.03.69	Vulnerable	Vsolcn
cpe:2.3:h:vsolcn:v1600d:-:::::::*	not specified by NVD	Running on	Vsolcn

cpe:2.3:o:vsolcn:v1600d_firmware:2.03.69:*:*:*:*:*:*:* Versions 2.03.69 Vulnerable ·Vsolcn
cpe:2.3:h:vsolcn:v1600d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Vsolcn

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-29377
2026-10-03 Alias added: GHSA-v37v-92mh-7r2f

References

Exploit 1

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

TI-2020-17662 An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600D4L V1.01.49… CVSS 3.1CRITICAL 9.8
TI-2020-17657 An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600D4L V1.01.49… CVSS 3.1CRITICAL 9.8
TI-2020-17659 An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600D4L V1.01.49… CVSS 3.1HIGH 8.8
TI-2020-17656 An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600D4L V1.01.49… CVSS 3.1HIGH 8.8
TI-2020-17663 An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600G1 V2.0.7 and V1.9.7… CVSS 3.1HIGH 7.8
TI-2020-17661 An issue was discovered on V-SOL V1600D V2.03.69 and V2.03.57, V1600D4L V1.01.49… CVSS 3.1MEDIUM 5.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences