What is the CVSS score of CVE-2019-3918?

CVE-2019-3918 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: 2.0%.

Is there a public PoC exploit available for CVE-2019-3918?

Yes, a public proof-of-concept exploit is available for CVE-2019-3918. Prioritise patching immediately. EPSS: 2.0%.

I 240W Q Gpon Ont Firmware CVE-2019-3918

CRITICAL

Use of Hard-coded Credentials (CWE-798)

2019-03-05 vulnreport@tenable.com

Authentication Bypass I 240W Q Gpon Ont 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

Mar 05, 2019 - 21:29 nvd

CRITICAL 9.8

DescriptionNVD

The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 contains multiple hard coded credentials for the Telnet and SSH interfaces.

AnalysisAI

The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 contains multiple hard coded credentials for the Telnet and SSH interfaces. 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. The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 contains multiple hard coded credentials for the Telnet and SSH interfaces. Affected products include: Nokia I-240W-Q Gpon Ont Firmware. Version information: version 3.

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.