CVE-2009-0385

CVE-2009-0385 is a critical-severity vulnerability in Ffmpeg with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Integer signedness error in the fourxm_read_header function in libavformat/4xm.c in FFmpeg before revision 16846 allows remote attackers to execute arbitrary code via a malformed 4X movie file with a large current_track value, which triggers a NULL pointer dereference.

Frequently asked questions

What is CVE-2009-0385?
Integer signedness error in the fourxm_read_header function in libavformat/4xm.c in FFmpeg before revision 16846 allows remote attackers to execute arbitrary code via a malformed 4X movie file with a large current_track value, which triggers a NULL pointer dereference.
How severe is CVE-2009-0385?
CVE-2009-0385 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-0385 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0385?
CVE-2009-0385 primarily affects Ffmpeg. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0385?
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-2009-0385 published?
CVE-2009-0385 was published on 2009-02-02 and last updated on 2026-06-16.

References

Affected products (9)

More vulnerabilities in Ffmpeg

All CVEs affecting Ffmpeg →