CVE-2007-6401

CVE-2007-6401 is a critical-severity vulnerability in 3ivx Mpeg-4 Codec with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 30% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Description

Stack-based buffer overflow in mplayer2.exe in Microsoft Windows Media Player (WMP) 6.4, when used with the 3ivx 4.5.1 or 5.0.1 codec, allows remote attackers to execute arbitrary code via a certain .mp4 file, possibly a related issue to CVE-2007-6402.

Frequently asked questions

What is CVE-2007-6401?
Stack-based buffer overflow in mplayer2.exe in Microsoft Windows Media Player (WMP) 6.4, when used with the 3ivx 4.5.1 or 5.0.1 codec, allows remote attackers to execute arbitrary code via a certain .mp4 file, possibly a related issue to CVE-2007-6402.
How severe is CVE-2007-6401?
CVE-2007-6401 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-6401 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 30% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-6401?
CVE-2007-6401 primarily affects 3ivx Mpeg-4 Codec. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-6401?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-6401 published?
CVE-2007-6401 was published on 2007-12-17 and last updated on 2026-06-16.

References

Affected products (3)

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