How severe is CVE-2013-3670?

CVE-2013-3670 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-3670 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-2013-3670?

CVE-2013-3670 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-3670?

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

When was CVE-2013-3670 published?

CVE-2013-3670 was published on 2013-06-10 and last updated on 2026-06-16.

CVE-2013-3670

CVE-2013-3670 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-119.

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-119
Affected product: Ffmpeg
Published: 2013-06-10
Last modified: 2026-06-16

Description

The rle_unpack function in vmdav.c in libavcodec in FFmpeg git 20130328 through 20130501 does not properly use the bytestream2 API, which allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) via crafted RLE data. NOTE: the vendor has listed this as an issue fixed in 1.2.1, but the issue is actually in new code that was not shipped with the 1.2.1 release or any earlier release.

Frequently asked questions

What is CVE-2013-3670?: The rle_unpack function in vmdav.c in libavcodec in FFmpeg git 20130328 through 20130501 does not properly use the bytestream2 API, which allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) via crafted RLE data. NOTE: the vendor has listed this as an issue fixed in 1.2.1, but the issue is actually in new code that was not shipped with the 1.2.1 release or any earlier release.
How severe is CVE-2013-3670?: CVE-2013-3670 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2013-3670 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-2013-3670?: CVE-2013-3670 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-3670?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3670 published?: CVE-2013-3670 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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