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CVE Record

CVE-2003-0503: Buffer overflow in the ShellExecute API function of SHELL32.DLL in Windows 2000 before SP4 may allow attack...

Buffer overflow in the ShellExecute API function of SHELL32.DLL in Windows 2000 before SP4 may allow attackers to cause a denial of service or execute arbitrary code via a long third argument.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects Windows 2000 systems before Service Pack 4. A malformed, overly long argument passed through the Windows ShellExecute function could crash a system or potentially run attacker-controlled code. Business risk is concentrated in legacy environments that still operate unpatched Windows 2000 hosts. Exposure is likely limited to Windows 2000 systems running before SP4, especially where applications pass untrusted input into ShellExecute. Modern systems are not identified as affected in the supplied sources. Prioritize if Windows 2000 remains in production or supports critical operations. Otherwise, handle as a legacy hygiene issue during asset cleanup and vulnerability management. Mitigation focus: Identify any Windows 2000 hosts and confirm service pack level.; Upgrade Windows 2000 systems to SP4 or a supported replacement.; Check Microsoft or vendor guidance for any environment-specific remediation..

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Potential ATT&CK relevance

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CVE-2003-0503 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
1Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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