Heap-based buffer overflow in the ff_audio_resample function in resample.c in libav before 11.4 allows remote attackers to cause a denial of service (crash) via vectors related to buffer resizing.
Conclusion & alert: CVE-2016-6832 is rated High Exploit Risk (63.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.59%). Core evidence: 4 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.23% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.36% | 1.59% | +1.23% |
| 2 | 2025-03-30 | 0.34% | 0.36% | +0.02% |
| 3 | 2025-03-29 | — | 0.34% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.0 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2016-6832 medium priority: Ubuntu including 1 source packages (libav), 8 status rows across 8 suites (artful, bionic, precise, trusty, upstream, xenial, yakkety, zesty): DNE 5, not-affected 2, needed 1. | https://ubuntu.com/security/CVE-2016-6832 |
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/08/13/1 | Exploit Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/08/18/1 | Exploit Mailing List Patch Third Party Advisory |
| https://blogs.gentoo.org/ago/2016/08/07/libav-heap-based-buffer-overflow-in-ff_audio_resample-resample-c/ | Exploit Third Party Advisory |
| https://bugzilla.libav.org/show_bug.cgi?id=825 | Exploit Issue Tracking Patch Third Party Advisory VDB Entry |
| https://git.libav.org/?p=libav.git%3Ba=commit%3Bh=0ac8ff618c5e6d878c547a8877e714ed728950ce |