Multiple stack-based buffer underflows in decoder/ih264d_parse_cavlc.c in mediaserver in Android 6.x before 2016-04-01 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted media file, aka internal bug 26399350.
Conclusion & alert: CVE-2016-0840 is rated Moderate Risk (60.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.65%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 0.79% | 1.65% | +0.86% |
| 2 | 2025-07-13 | 1.16% | 0.79% | -0.37% |
| 3 | 2025-03-30 | — | 1.16% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.4 | 3.0 | HIGH |
|
2.5 | 5.9 | [email protected] |
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
high | CVE-2016-0840 high priority: Ubuntu including 1 source packages (android), 9 status rows across 9 suites (artful, bionic, precise, trusty, upstream, wily, xenial, yakkety, zesty): DNE 4, ignored 4, released 1. | https://ubuntu.com/security/CVE-2016-0840 |
| URL | Tags |
|---|---|
| http://source.android.com/security/bulletin/2016-04-02.html | Vendor Advisory |
| https://android.googlesource.com/platform/external/libavc/+/c57fc3703ae2e0d41b1f6580c50015937f2d23c1 | Vendor Advisory |