What is the CVSS score of CVE-2018-7949?

CVE-2018-7949 has a CVSS 3.0 base score of 8.8 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Rh2288 V3 Firmware CVE-2018-7949

HIGH

Improper Authentication (CWE-287)

2018-06-01 psirt@huawei.com

Authentication Bypass Privilege Escalation Huawei Rh2288 V3 Firmware Rh2288H V3 Firmware Rh1288 V3 Firmware Ch222 V3 Firmware Ch220 V3 Firmware Ch121 V3 Firmware Ch121L V3 Firmware Ch140 V3 Firmware Ch140L V3 Firmware Ch242 V3 Firmware Xh310 V3 Firmware Xh321 V3 Firmware Xh620 V3 Firmware Ch121 V5 Firmware Ch121L V5 Firmware Ch242 V5 Firmware 1288H V5 Firmware 2288H V5 Firmware 2488 V5 Firmware Xh321 V5 Firmware

8.8

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 1.1% exploitation probability (EPSS)

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AnalysisAI

The iBMC (Intelligent Baseboard Management Controller) of some Huawei servers have a privilege escalation vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

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.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. The iBMC (Intelligent Baseboard Management Controller) of some Huawei servers have a privilege escalation vulnerability. A remote attacker may send some specially crafted login messages to the affected products. Due to improper authentication design, successful exploit enables low privileged users to get or modify passwords of highly privileged users. Affected products include: Huawei 1288H V5 Firmware, Huawei 2288H V5 Firmware, Huawei 2488 V5 Firmware, Huawei Ch121 V3 Firmware, Huawei Ch121L V3 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

The iBMC (Intelligent Baseboard Management Controller) of some Huawei servers have a privilege escalation vulnerability. A remote attacker may send some specially crafted login messages to the affected products. Due to improper authentication design, successful exploit enables low privileged users to get or modify passwords of highly privileged users.

Threat Intelligence Overview

EPSS Score

1.1%

Top 38% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 1.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.