CVE-2019-15431: The Evercoss U50A Android device with a build fingerprint of EVERCOSS/U50A./EVERCOSS:7.0/NRD90M/1499911028:eng

Routine

MEDIUM 5.5MITIGATE

CVE-2019-15431 is a medium-severity flaw (CVSS 5.5) affecting u50a max firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Evercoss U50A Android device with a build fingerprint of EVERCOSS/U50A./EVERCOSS:7.0/NRD90M/1499911028:eng/test-keys contains a pre-installed app with a package name of com.qiku.cleaner app (versionCode=2, versionName=2.0_VER_2017.04.21_17:55:55) that allows other pre-installed apps to perform system properties modification via an accessible app component. This capability can be accessed by any pre-installed app on the device which can obtain

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Published	2019-11-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: evercoss

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-11-14 17:15 UTCPublished CVE record published
2026-06-17 02:20 UTCUpdated Record last modified

evercoss u50a max firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-15431?

u50a max firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-15431 being exploited?

CVE-2019-15431 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-15431 affect?

CVE-2019-15431 affects u50a max firmware. Severity is medium (CVSS 5.5). The Evercoss U50A Android device with a build fingerprint of EVERCOSS/U50A./EVERCOSS:7.0/NRD90M/1499911028:eng/test-keys contains a pre-installed app with a package name of com.qiku.cleaner app (versionCode=2, versionName=2.0_VER_2017.04.21

How urgent is CVE-2019-15431?

Priority 25/100. No elevated risk signals yet.

Software pages

Android vulnerabilities

References

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