CVE-2016-7393

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows...

5.5 MediumFix available

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.55%Up 0.3 points since Feb 4, 2022

What each source reports

NVD Score used 5.5

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: CVE-2016-7393
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-125
Updated: 2026-11-02

CVE List No score

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: CVE-2016-7393
Updated: 2026-11-02

EUVDEUVD-2016-8249 No score

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: EUVD-2016-8249
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qq7m-x2fc-fmhf 5.5

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows...

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: GHSA-qq7m-x2fc-fmhf
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSV 5.5

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: CVE-2016-7393
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-7393 5.5

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: DEBIAN-CVE-2016-7393
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-7393 5.5

Stack-based buffer overflow in the aac_sync function in aac_parser.c in Libav before 11.5 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

Record: UBUNTU-CVE-2016-7393
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

libav

Affected packages

Affected packages
Package	Affected	Fixed
`ffmpeg` Debian:12	before 7:2.4-1	7:2.4-1
`ffmpeg` Debian:13	before 7:2.4-1	7:2.4-1
`ffmpeg` Debian:14	before 7:2.4-1	7:2.4-1
`libav` Debian:7	before 6:0.8.18-0+deb7u1, plus listed versions 6:0.8.10-16:0.8.12-16:0.8.13-16:0.8.15-16:0.8.16-1 Show 8 moreShow less 6:0.8.17-16:0.8.17-26:0.8.17-2+deb7u16:0.8.17-2+deb7u26:0.8.6-16:0.8.7-16:0.8.8-16:0.8.9-1	6:0.8.18-0+deb7u1
`libav` Ubuntu:Pro:14.04:LTS	before 6:9.20-0ubuntu0.14.04.1+esm1, plus listed versions 6:0.8.7-1ubuntu26:9.10-1ubuntu16:9.10-1ubuntu26:9.10-1ubuntu56:9.10-1ubuntu6 Show 8 moreShow less 6:9.10-1ubuntu76:9.11-2ubuntu16:9.11-2ubuntu26:9.13-0ubuntu0.14.04.16:9.14-0ubuntu0.14.04.16:9.16-0ubuntu0.14.04.16:9.18-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.1	6:9.20-0ubuntu0.14.04.1+esm1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-7393 is a medium vulnerability (CVSS 5.5) in Libav, published October 4, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.55%, the 75th percentile. Fixed in ffmpeg 7:2.4-1.

References

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