CVE-2015-6820

Name: CVE-2015-6820
Creator: NVD / NIST
Published: 2015-09-06T02:59:02.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.41%

Last modified Jun 17, 2026

CVE-2015-6820 is a vulnerability of currently unknown severity. The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted AAC data.. EPSS estimates a 2.41% chance of exploitation in the next 30 days.

Description

The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted AAC data.

Metrics

EPSS Probability

2.41%

82.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Ffmpeg	Ffmpeg	<= 2.7.1
Canonical	Ubuntu Linux	12.04

References

Timeline

Published: Sep 6, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6820?

How severe is CVE-2015-6820?

Severity scoring for CVE-2015-6820 is pending analysis. The EPSS model estimates a 2.41% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6820?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6820?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST