HIGH

CVE-2019-14657

CVSS v3

8.8

HIGH

EPSS Score

3.7 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2019-14657 yet.

Full record on NVD

Description

Yealink phones through 2019-08-04 have an issue with OpenVPN file upload. They execute tar as root to extract files, but do not validate the extraction directory. Creating a tar file with ../../../../ allows replacement of almost any file on a phone. This leads to password replacement and arbitrary code execution as root.

Technical details

Published: 2019-10-08

Frequently asked questions

What is CVE-2019-14657?

Is CVE-2019-14657 actively exploited?

Active exploitation of CVE-2019-14657 has not been confirmed. Its EPSS score was 3.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-14657?

CVE-2019-14657 has a CVSS v3 base score of 8.8 (HIGH severity).

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