How severe is CVE-2019-15431?

CVE-2019-15431 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-15431 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15431?

CVE-2019-15431 affects Evercoss U50a Max Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15431?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-15431 published?

CVE-2019-15431 was published on 2019-11-14 and last updated on 2026-06-17.

CVE-2019-15431

CVE-2019-15431 is a medium-severity vulnerability in Evercoss U50a Max Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Evercoss U50a Max Firmware
Published: 2019-11-14
Last modified: 2026-06-17

Description

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 signatureOrSystem permissions that are required by other other pre-installed apps that exported their capabilities to other pre-installed app.

Frequently asked questions

What is CVE-2019-15431?: 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 signatureOrSystem permissions that are required by other other pre-installed apps that exported their capabilities to other pre-installed app.
How severe is CVE-2019-15431?: CVE-2019-15431 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-15431 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15431?: CVE-2019-15431 affects Evercoss U50a Max Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15431?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15431 published?: CVE-2019-15431 was published on 2019-11-14 and last updated on 2026-06-17.

References

https://www.kryptowire.com/android-firmware-2019/

Affected products (1)

cpe:2.3:o:evercoss:u50a_max_firmware:-:*:*:*:*:*:*:*