LiveActive security incident?Get immediate response
CVE Record

CVE-2021-42744: Philips MRI 1.5T and 3T Information Exposure

Philips MRI 1.5T and MRI 3T Version 5.3 through 5.8.1 does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

MediumCVSS 5.9Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE describes an information exposure issue in Philips MRI 1.5T and 3T systems. An unauthorized actor may be able to access a resource that should be restricted. The main business risk is confidentiality, not system disruption, based on the provided CVSS data.

Executive priority

Handle as a medium-priority medical device confidentiality issue. Urgency is higher where affected MRI systems are broadly accessible or poorly segmented. There is no active exploitation evidence in the provided sources, but patient, operational, or diagnostic information exposure may still create business risk.

Technical view

Philips MRI 1.5T and MRI 3T software versions 5.3 through 5.8.1 are described as affected by improper resource access restriction, mapped to CWE-552. CVSS v4.0 is 5.9 with local attack vector, low complexity, no privileges, no user interaction, and high vulnerable-system confidentiality impact.

Likely exposure

Exposure is most likely in healthcare environments operating Philips MRI 1.5T or 3T systems on the cited software range. The bundle’s affected-version metadata is limited, so asset inventory and vendor confirmation are needed.

Exploitation context

The source bundle does not cite active exploitation, and KEV status is false. The CVSS vector indicates local access is required, with no privileges or user interaction, and impact limited to confidentiality in the provided scoring.

Researcher notes

Evidence supports improper resource exposure on Philips MRI 1.5T and 3T software 5.3 through 5.8.1. The bundle does not provide exploit details, patch specifics, or confirmed exploitation. The affected array appears narrower than the description, so confirm exact scope with Philips.

Mitigation direction

  • Identify Philips MRI 1.5T and 3T systems in the environment.
  • Confirm installed software versions against Philips guidance.
  • Review Philips product security guidance or contact Philips for corrective actions.
  • Restrict local and physical access to MRI systems and service interfaces.
  • Segment MRI systems from unnecessary clinical and administrative network access.
  • Monitor for unauthorized access to sensitive local resources.

Validation and detection

  • Inventory Philips MRI model and software versions.
  • Confirm whether versions fall within 5.3 through 5.8.1.
  • Review access controls around local MRI consoles and service accounts.
  • Check system and operational logs for unexpected resource access.
  • Document vendor guidance, compensating controls, and remediation status.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-552: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-42744 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.9CVSS 4.0MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NPrimary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

5.9Medium
CVSS 4.0 vector shape for CVE-2021-42744Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
PhilipsMRI 1.5T5.3unaffected
PhilipsMRI 3T5.3unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-552 · source CWE mapping

Files or Directories Accessible to External Parties

Files or Directories Accessible to External Parties represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.