How severe is CVE-2013-3671?

CVE-2013-3671 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-3671 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3671?

CVE-2013-3671 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-3671?

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

When was CVE-2013-3671 published?

CVE-2013-3671 was published on 2013-06-10 and last updated on 2026-06-16.

CVE-2013-3671

CVE-2013-3671 is a medium-severity vulnerability in Ffmpeg with a CVSS 2.0 base score of 4.3. 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-189.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Ffmpeg
Published: 2013-06-10
Last modified: 2026-06-16

Description

The format_line function in log.c in libavutil in FFmpeg before 1.2.1 uses inapplicable offset data during a certain category calculation, which allows remote attackers to cause a denial of service (invalid pointer dereference and application crash) via crafted data that triggers a log message.

Frequently asked questions

What is CVE-2013-3671?: The format_line function in log.c in libavutil in FFmpeg before 1.2.1 uses inapplicable offset data during a certain category calculation, which allows remote attackers to cause a denial of service (invalid pointer dereference and application crash) via crafted data that triggers a log message.
How severe is CVE-2013-3671?: CVE-2013-3671 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2013-3671 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3671?: CVE-2013-3671 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-3671?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3671 published?: CVE-2013-3671 was published on 2013-06-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

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