CVE-2019-14657 describes a critical vulnerability in Yealink phones (e.g., T49G, T58V, VP59) through 2019-08-04, where an OpenVPN file upload mechanism insecurely extracts tar archives as root. This allows an authenticated attacker to use directory traversal (CWE-22) to overwrite arbitrary files, leading to password replacement and arbitrary code execution as root (CWE-434). Rated 8.8 HIGH (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), it requires low privileges but has high impact on confidentiality, integrity, and availability. While no public exploits (Metasploit, Nuclei, ExploitDB) or active exploitation are reported, and community discussion is minimal, the potential for a sophisticated attacker to leverage this for full system compromise remains significant.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2019-08-04CPE matchmatch criteria | cpe:2.3:o:yeahlink:vp59_firmware:*:*:*:*:*:*:*:* | ||
<= 2019-08-04CPE matchmatch criteria | cpe:2.3:o:yeahlink:t49g_firmware:*:*:*:*:*:*:*:* | ||
<= 2019-08-04CPE matchmatch criteria | cpe:2.3:o:yeahlink:t58v_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.