CVE-2004-0123: n/a vulnerability

CVE-2004-0123: Double free vulnerability in the ASN.1 library as used in Windows NT 4.0, Windows 2000, Windows XP, and Win...

Double free vulnerability in the ASN.1 library as used in Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003, allows remote attackers to cause a denial of service and possibly execute arbitrary code.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 00:10 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy Microsoft Windows ASN.1 library memory-management flaw. A remote attacker could crash affected systems and may be able to run arbitrary code. The bundle identifies Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003 as affected. Exposure is most likely where legacy Windows NT 4.0, 2000, XP, or Server 2003 systems remain reachable or process ASN.1-encoded data. The bundle does not identify specific enabled services, ports, or application paths. Treat this as a legacy-system containment and remediation priority. It affects obsolete Windows platforms and has possible remote code execution impact, but the provided evidence does not confirm active exploitation. Mitigation focus: Review Microsoft MS04-011 for the applicable security update and deployment guidance.; Apply vendor-approved patches where those legacy systems are still patchable.; Find and isolate remaining affected Windows NT, 2000, XP, and Server 2003 hosts..

Prepared: Jun 30, 2026, 05:56 UTC (UTC+00:00)

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.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup

cve · low confidence lookup

CVE-2004-0123 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: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 16, 2004, 04:00 UTC (UTC+00:00)

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

6Source links

CVSS and timeline data

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

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:924CVE reference · vdb-entry, signature
win-asn1-double-free(15713)CVE reference · vdb-entry, x_refsource_XF
MS04-011CVE reference · vendor-advisory, x_refsource_MS
oval:org.mitre.oval:def:1007CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:1076CVE reference · vdb-entry, signature

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.