CVE-2015-5479

MEDIUMNVD 6.56.5—

6.5

The ff_h263_decode_mba function in libavcodec/ituh263dec.c in Libav before 11.5 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a file with crafted dimensions.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 80.3%
KEV: Not listed

Published

April 19, 2016

Last Modified

May 6, 2026

References (12)

cve@mitrehttp://lists.opensuse.org/opensuse-updates/2016-06/msg00105.html
cve@mitrehttp://www.securityfocus.com/bid/75932
cve@mitrehttp://www.ubuntu.com/usn/USN-2944-1
cve@mitrehttps://blogs.gentoo.org/ago/2015/07/16/libav-divide-by-zero-in-ff_h263_decode_mba/
cve@mitrehttps://git.libav.org/?p=libav.git%3Ba=commitdiff%3Bh=0a49a62f998747cfa564d98d36a459fe70d3299b
cve@mitrehttps://libav.org/releases/libav-11.5.changelog
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2016-06/msg00105.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/75932
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2944-1
af854a3a-2127-422b-91ae-364da2661108https://blogs.gentoo.org/ago/2015/07/16/libav-divide-by-zero-in-ff_h263_decode_mba/
af854a3a-2127-422b-91ae-364da2661108https://git.libav.org/?p=libav.git%3Ba=commitdiff%3Bh=0a49a62f998747cfa564d98d36a459fe70d3299b
af854a3a-2127-422b-91ae-364da2661108https://libav.org/releases/libav-11.5.changelog

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	libavcodec53 (4:0.8.17-0ubuntu0.12.04.2) @ precise	2026-05-22	ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

UbuntuUSN-2944-1MEDIUM
Libav vulnerabilities

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-5479?

CVE-2015-5479 is a medium vulnerability published on April 19, 2016. The ffh263decode_mba function in libavcodec/ituh263dec.c in Libav before 11.5 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a file with crafted dimensions.

When was CVE-2015-5479 disclosed?

CVE-2015-5479 was first published in the National Vulnerability Database on April 19, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-5479 actively exploited?

CVE-2015-5479 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-5479?

CVE-2015-5479 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2015-5479?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5479, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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