What is the CVSS score of CVE-2023-23770?

CVE-2023-23770 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: 0.5%.

Mbts Site Controller Firmware CVE-2023-23770

CRITICAL

Use of Hard-coded Password (CWE-259)

2023-08-29 cert@ncsc.nl

Authentication Bypass Mbts Site Controller Firmware Motorola

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-259 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication No hard-coded passwords MITRE ATT&CK 1 technique across 1 tactic: Persistence 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 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAI

Motorola MBTS Site Controller accepts hard-coded backdoor password. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-259. Motorola MBTS Site Controller accepts hard-coded backdoor password. The Motorola MBTS Site Controller Man Machine Interface (MMI), allowing for service technicians to diagnose and configure the device, accepts a hard-coded backdoor password that cannot be changed or disabled. Affected products include: Motorola Mbts Site Controller Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

Motorola MBTS Site Controller accepts hard-coded backdoor password. The Motorola MBTS Site Controller Man Machine Interface (MMI), allowing for service technicians to diagnose and configure the device, accepts a hard-coded backdoor password that cannot be changed or disabled.

Threat Intelligence Overview

EPSS Score

0.5%

Top 64% 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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.5%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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.