How severe is CVE-2007-4938?

CVE-2007-4938 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2007-4938 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4938?

CVE-2007-4938 primarily affects Mplayer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4938?

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-2007-4938 published?

CVE-2007-4938 was published on 2007-09-18 and last updated on 2026-06-16.

CVE-2007-4938

CVE-2007-4938 is a high-severity vulnerability in Mplayer with a CVSS 2.0 base score of 7.6. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Mplayer
Published: 2007-09-18
Last modified: 2026-06-16

Description

Heap-based buffer overflow in libmpdemux/aviheader.c in MPlayer 1.0rc1 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a .avi file with certain large "indx truck size" and nEntriesInuse values, and a certain wLongsPerEntry value.

Frequently asked questions

What is CVE-2007-4938?: Heap-based buffer overflow in libmpdemux/aviheader.c in MPlayer 1.0rc1 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a .avi file with certain large "indx truck size" and nEntriesInuse values, and a certain wLongsPerEntry value.
How severe is CVE-2007-4938?: CVE-2007-4938 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2007-4938 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4938?: CVE-2007-4938 primarily affects Mplayer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4938?: 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-2007-4938 published?: CVE-2007-4938 was published on 2007-09-18 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:mplayer:mplayer:1.0_rc1:*:*:*:*:*:*:*
cpe:2.3:o:sgi:irix:*:*:*:*:*:*:*:*

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