Is CVE-2018-19879 actively exploited?

No active exploitation of CVE-2018-19879 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-19879 be exploited remotely?

Partially. CVE-2018-19879 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2018-19879?

CVE-2018-19879 has a CVSS score of 7.1 (HIGH).

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HIGH

CVE-2018-19879

CWE-307Published: March 28, 2019· Updated: Jun 17, 2026

7.1

CVSS v3.1

Official Description

An issue was discovered in /cgi-bin/luci on Teltonika RTU9XX (e.g., RUT950) R_31.04.89 before R_00.05.00.5 devices. The authentication functionality is not protected from automated tools used to make login attempts to the application. An anonymous attacker has the ability to make unlimited login attempts with an automated tool. This ability could lead to cracking a targeted user's password.

NVD Source

Technical Analysis

CVE-2018-19879 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.