What is CVE-2018-15002?

CVE-2018-15002 is a medium-severity vulnerability in Vivo V7, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.7/10. Published 2018-12-28.

How severe is CVE-2018-15002?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Information disclosure in Vivo V7

CVE-2018-15002

The Vivo V7 device with a build fingerprint of vivo/1718/1718:7.1.2/N2G47H/compil11021857:user/release-keys allows any app co-located on the device to set system properties as the com.android.phone user. The com.qualcomm.qti.modemtestmode app (versionCode=25, versionName=7.1.2) that contains an exported service named com.qualcomm.qti.modemtestmode.MbnTestService that allows any app co-located on the device to provide key-value pairs to set certain system properties. Notably, system properties with the persist.* prefix can be set which will survive a reboot. On the Vivo V7 device, when the persist.sys.input.log property is set to have a value of yes, the user's screen touches be written to the logcat log by the InputDispatcher for all apps. The system-wide logcat log can be obtained from external storage via a different known vulnerability on the device. The READ_EXTERNAL_STORAGE permission is necessary to access the log files containing the user's touch coordinates. With some effort, the user's touch coordinates can be mapped to key presses on a keyboard.

Published 2018-12-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Vivo V7
Vivo V7 Firmware — versions 7.1.2

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

www.kryptowire.com/portal/wp-content/uploads/2018/12/DEFCON-26-Johnson-and-Stav… (Third Party Advisory)
www.kryptowire.com/portal/android-firmware-defcon-2018/ (Third Party Advisory)

Frequently asked questions

What is CVE-2018-15002?: CVE-2018-15002 is a medium-severity vulnerability in Vivo V7, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.7/10. Published 2018-12-28.
How severe is CVE-2018-15002?: Medium severity. CVSS v3 base score is 4.7 out of 10.