CVE-2003-0346

CVE-2003-0346 is a high-severity vulnerability in Microsoft Directx with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 33% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Multiple integer overflows in a Microsoft Windows DirectX MIDI library (QUARTZ.DLL) allow remote attackers to execute arbitrary code via a MIDI (.mid) file with (1) large length for a Text or Copyright string, or (2) a large number of tracks, which leads to a heap-based buffer overflow.

Frequently asked questions

What is CVE-2003-0346?
Multiple integer overflows in a Microsoft Windows DirectX MIDI library (QUARTZ.DLL) allow remote attackers to execute arbitrary code via a MIDI (.mid) file with (1) large length for a Text or Copyright string, or (2) a large number of tracks, which leads to a heap-based buffer overflow.
How severe is CVE-2003-0346?
CVE-2003-0346 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0346 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0346?
CVE-2003-0346 primarily affects Microsoft Directx. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0346?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0346 published?
CVE-2003-0346 was published on 2003-08-27 and last updated on 2026-06-16.

References

Affected products (6)

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