What is the CVSS score of CVE-2020-29376?

CVE-2020-29376 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2020-29376?

Yes, a public proof-of-concept exploit is available for CVE-2020-29376. Prioritise patching immediately. EPSS: 1.1%.

V1600D Firmware CVE-2020-29376

CRITICAL

Use of Hard-coded Credentials (CWE-798)

2020-11-29 cve@mitre.org

Authentication Bypass V1600D Firmware V1600D4L Firmware V1600D Mini Firmware V1600G1 Firmware V1600G2 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 29, 2020 - 01:15 nvd

CRITICAL 9.8

DescriptionNVD

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. There is an !j@l#y$z%x6x7q8c9z) password for the admin account to authenticate to the TELNET service.

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Use of Hard-coded Credentials (CWE-798), which allows attackers to gain access using credentials embedded in source code. 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. There is an !j@l#y$z%x6x7q8c9z) password for the admin account to authenticate to the TELNET service. Affected products include: Vsolcn V1600D Firmware, Vsolcn V1600D4L Firmware, Vsolcn V1600D-Mini Firmware, Vsolcn V1600G1 Firmware, Vsolcn V1600G2 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Remove hard-coded credentials, use environment variables or secrets management, rotate exposed credentials immediately.