What is CVE-2015-6639?

CVE-2015-6639 is a high-severity vulnerability in Google Android, classified under CWE-264. CVSS score: 7.8/10. Published 2016-01-06.

How severe is CVE-2015-6639?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2015-6639 known to be exploited?

38 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Android

CVE-2015-6639

The Widevine QSEE TrustZone application in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application that leverages QSEECOM access, aka internal bug 24446875.

Published 2016-01-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.069 (93.9th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.069 · newest: 0.069 · change: 0.000

Affected products

Google Android — versions 5.0, 5.1.1, 6.0

Weakness classification (CWE)

CWE-264

Public proof-of-concept exploits

References

www.exploit-db.com/exploits/39757/ (exploit)
www.securitytracker.com/id/1034592 (vdb-entry)
source.android.com/security/bulletin/2016-01-01.html (Vendor Advisory)
seclists.org/fulldisclosure/2023/May/26 (mailing-list)
packetstormsecurity.com/files/172637/Widevine-Trustlet-5.x-6.x-7.x-PRDiagVerify…

Frequently asked questions

What is CVE-2015-6639?: CVE-2015-6639 is a high-severity vulnerability in Google Android, classified under CWE-264. CVSS score: 7.8/10. Published 2016-01-06.
How severe is CVE-2015-6639?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2015-6639 known to be exploited?: 38 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.