How severe is CVE-2012-0851?

CVE-2012-0851 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2012-0851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0851?

CVE-2012-0851 primarily affects Ffmpeg. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0851?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-0851 published?

CVE-2012-0851 was published on 2012-08-20 and last updated on 2026-06-16.

CVE-2012-0851

CVE-2012-0851 is a medium-severity vulnerability in Ffmpeg with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Ffmpeg
Published: 2012-08-20
Last modified: 2026-06-16

Description

The ff_h264_decode_seq_parameter_set function in h264_ps.c in libavcodec in FFmpeg before 0.9.1 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted H.264 file, related to the chroma_format_idc value.

Frequently asked questions

What is CVE-2012-0851?: The ff_h264_decode_seq_parameter_set function in h264_ps.c in libavcodec in FFmpeg before 0.9.1 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted H.264 file, related to the chroma_format_idc value.
How severe is CVE-2012-0851?: CVE-2012-0851 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2012-0851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0851?: CVE-2012-0851 primarily affects Ffmpeg. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0851?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0851 published?: CVE-2012-0851 was published on 2012-08-20 and last updated on 2026-06-16.

References

Affected products (38)

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.7:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.8:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.9:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.11:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.7.12:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.8.5:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.8.6:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.8.7:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.8.8:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.8.10:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:0.8.11:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.5:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.6:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.5.7:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.6:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.6.3:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.6.4:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.6.5:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.7:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.7.3:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.7.4:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.7.5:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.8:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.8:beta2:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:libav:libav:0.8.2:*:*:*:*:*:*:*

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