Multiple integer overflows in the addVorbisCodecInfo function in matroska/MatroskaExtractor.cpp in libstagefright in mediaserver in Android before 5.1.1 LMY48M allow remote attackers to cause a denial of service (device inoperability) via crafted Matroska data, aka internal bug 21296336.
Conclusion & alert: CVE-2015-3861 is rated Low Risk (38.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.31%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 2025-03-17 | 0.14% | 0.31% | +0.17% |
| 2 | 2023-03-07 | 1.05% | 0.14% | -0.92% |
| 3 | 2022-02-04 | — | 1.05% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
negligible | CVE-2015-3861 negligible priority: Ubuntu including 1 source packages (android), 5 status rows across 5 suites (precise, trusty, upstream, vivid, wily): DNE 2, ignored 2, needs-triage 1. | https://ubuntu.com/security/CVE-2015-3861 |