What is the CVSS score of CVE-2022-43557?

CVE-2022-43557 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H. EPSS exploitation probability: 0.2%.

Bodyguard 999 603 Firmware CVE-2022-43557

MEDIUM

Missing Protection Mechanism for Alternate Hardware Interface (CWE-1299)

2022-12-05 cybersecurity@bd.com

Information Disclosure Bodyguard 999 603 Firmware Bodyguard Duo 999 903 Firmware Bodyguard Epidural 999 683 Firmware Bodyguard Pain Manager 999 803 Firmware Bodyguard T 999 103 Firmware Bodyguard 323 Colorvision Firmware Bodyguard 121 Twins Firmware Bd

5.3

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-1299 ASVS 5.0 V15 - Secure Coding and Architecture Hardware write protection
Impact	CVSS score of 5.3 (MEDIUM). Attack characteristics: physical attack vector, high complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

The BD BodyGuard™ infusion pumps specified allow for access through the RS-232 (serial) port interface. Rated medium severity (CVSS 5.3), this vulnerability is no authentication required. 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.

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Technical ContextAI · show details

This vulnerability is classified under CWE-1299. The BD BodyGuard™ infusion pumps specified allow for access through the RS-232 (serial) port interface. If exploited, threat actors with physical access, specialized equipment and knowledge may be able to configure or disable the pump. No electronic protected health information (ePHI), protected health information (PHI) or personally identifiable information (PII) is stored in the pump. Affected products include: Bd Bodyguard 999-603 Firmware, Bd Bodyguard Duo 999-903 Firmware, Bd Bodyguard Epidural 999-683 Firmware, Bd Bodyguard Pain Manager 999-803 Firmware, Bd Bodyguard T 999-103 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

DescriptionNVD

The BD BodyGuard™ infusion pumps specified allow for access through the RS-232 (serial) port interface. If exploited, threat actors with physical access, specialized equipment and knowledge may be able to configure or disable the pump. No electronic protected health information (ePHI), protected health information (PHI) or personally identifiable information (PII) is stored in the pump.

Threat Intelligence Overview

EPSS Score

0.2%

Top 88% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

VulDB

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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +26

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.