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CVE Record

CVE-2018-3655: A vulnerability in a subsystem in Intel CSME before version 11.21.55, Intel Server Platform Services before...

A vulnerability in a subsystem in Intel CSME before version 11.21.55, Intel Server Platform Services before version 4.0 and Intel Trusted Execution Engine Firmware before version 3.1.55 may allow an unauthenticated user to potentially modify or disclose information via physical access.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-3655 affects Intel firmware components below the operating system. With physical access to a vulnerable system, an unauthenticated attacker may be able to disclose or modify information. The business issue is firmware hygiene across endpoint, server, and appliance fleets. The provided sources do not show remote or active exploitation.

Executive priority

Handle through planned firmware remediation, with faster action for physically exposed or high-trust systems. This is not presented as actively exploited, but firmware-level weaknesses can undermine platform trust if left unmanaged.

Technical view

The CVE covers Intel CSME before 11.21.55, Intel Server Platform Services before 4.0, and Intel Trusted Execution Engine Firmware before 3.1.55. The flaw is described only as a subsystem vulnerability enabling potential information modification or disclosure via physical access. No CVSS vector or CWE is provided in the bundle.

Likely exposure

Exposure is most likely on systems, servers, or appliances using the affected Intel firmware versions, including platforms referenced by OEM advisories. Risk depends on inventory accuracy, firmware update status, and whether attackers can physically access devices.

Exploitation context

The source bundle says exploitation requires physical access and an unauthenticated user. It does not include exploit details, public exploitation evidence, or CISA KEV listing. Treat this as a physical-access firmware risk rather than an internet-facing emergency.

Researcher notes

Evidence is limited to the CVE description and vendor advisory references. The bundle lacks CVSS, CWE, detailed root cause, and exploit status. Avoid assuming remote reachability or product impact beyond listed Intel firmware families and referenced OEM advisories.

Mitigation direction

  • Inventory systems using Intel CSME, SPS, or TXE firmware.
  • Apply OEM or Intel firmware updates meeting the fixed version thresholds.
  • Prioritize shared, unattended, or physically exposed systems.
  • Review HPE and NetApp advisories for product-specific guidance.
  • Maintain physical access controls around vulnerable devices.

Validation and detection

  • Confirm firmware versions against Intel CSME 11.21.55, SPS 4.0, and TXE 3.1.55 thresholds.
  • Check OEM advisory coverage for each affected platform model.
  • Verify firmware update deployment through management tooling or device inventory.
  • Document systems that cannot be updated and their physical access controls.
Prepared
Confidence
medium
Sources
5

Public sources used

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

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CVE-2018-3655 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Intel CorporationIntel(R) CSME before version 11.21.55, Intel(R) Server Platform Services before version 4.0 and Intel(R) Trusted Execution Engine FirmwareVersions before 11.21.55, 4.0 and 3.1.55.Listed
Weakness

CWE details

No CWE listed

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