What is the CVSS score of CVE-2018-9249?

CVE-2018-9249 has a CVSS 3.0 base score of 9.8 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 6.3%.

Vdsl2 Modem Hg 150 Ub Firmware CVE-2018-9249

CRITICAL

Improper Authentication (CWE-287)

2018-04-04 cve@mitre.org

Authentication Bypass Vdsl2 Modem Hg 150 Ub Firmware

9.8

CVSS 3.0 · 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:3.0/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

Apr 04, 2018 - 15:29 nvd

CRITICAL 9.8

DescriptionNVD

FiberHome VDSL2 Modem HG 150-UB devices allow authentication bypass by ignoring the parent.location='login.html' JavaScript code in the response to an unauthenticated request.

AnalysisAI

FiberHome VDSL2 Modem HG 150-UB devices allow authentication bypass by ignoring the parent.location='login.html' JavaScript code in the response to an unauthenticated request. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. FiberHome VDSL2 Modem HG 150-UB devices allow authentication bypass by ignoring the parent.location='login.html' JavaScript code in the response to an unauthenticated request. Affected products include: Fiberhome Vdsl2 Modem Hg 150-Ub Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.