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CVE Record

CVE-2004-0893: The Local Procedure Call (LPC) interface of the Windows Kernel for Windows NT 4.0, Windows 2000, Windows XP...

The Local Procedure Call (LPC) interface of the Windows Kernel for Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003 does not properly validate the lengths of messages sent to the LPC port, which allows local users to gain privileges, aka "Windows Kernel Vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2004-0893 is a Windows kernel flaw where local message handling can be abused by someone who already has local access to gain higher privileges. It affects legacy Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003 systems listed in the CVE description.

Executive priority

Prioritize remediation if any affected legacy Windows systems remain in production or sensitive environments. This is not presented as remotely exploitable, but local privilege escalation can turn a minor foothold into full system compromise on unsupported infrastructure.

Technical view

The Windows Kernel Local Procedure Call interface did not properly validate LPC message lengths. A local user could trigger the validation flaw to elevate privileges. The provided bundle names MS04-044 as the Microsoft advisory and includes OVAL checks, but provides no CVSS, CWE, or detailed exploit-status evidence.

Likely exposure

Exposure is mainly legacy Windows hosts still running Windows NT 4.0, Windows 2000, Windows XP, or Windows Server 2003. Risk is highest where untrusted users, shared accounts, terminal access, or compromised low-privilege accounts exist on those systems.

Exploitation context

The bundle does not show CISA KEV status and marks KEV as false. It supports local privilege escalation, not remote unauthenticated compromise. Treat exploitability as plausible for vulnerable legacy systems, but do not claim active exploitation from these sources alone.

Researcher notes

Evidence is sparse: no CVSS, CWE, or detailed affected CPEs are provided in the bundle. The affected platforms come from the CVE description. Use MS04-044 and the listed OVAL definitions for authoritative validation rather than inferring broader product impact.

Mitigation direction

  • Apply Microsoft guidance and security updates referenced by MS04-044.
  • Identify and retire unsupported affected Windows systems where possible.
  • Restrict interactive and local logon access on affected hosts.
  • Reduce local administrator paths and unnecessary user accounts.
  • Use OVAL definitions to verify patch or vulnerability state.

Validation and detection

  • Inventory systems for Windows NT 4.0, 2000, XP, and Server 2003.
  • Check patch status against MS04-044 and relevant OVAL definitions.
  • Confirm whether affected hosts allow local or terminal user access.
  • Review privilege-boundary monitoring for legacy Windows systems.
  • Document any unsupported systems requiring compensating controls.
Prepared
Confidence
medium
Sources
6

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-2004-0893 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
11Source 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
n/an/an/aListed
Weakness

CWE details

No CWE listed

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