CVE-2020-25749

CRITICAL

Rubetek RV-3406, RV-3409, RV-3411 Firmware v339, v342 - Use of Hard-coded Credentials in Telnet Service

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-25749. PoCs published by jet-pentest.

AI-analyzed exploit summary This repository contains a writeup describing CVE-2020-25749, a hard-coded credentials vulnerability in Rubetek cameras (RV-3406, RV-3409, RV-3411) running firmware versions v339 and v342. The vulnerability allows remote attackers to gain root access via Telnet using static credentials.

Description

The Telnet service of Rubetek cameras RV-3406, RV-3409, and RV-3411 cameras (firmware versions v342, v339) could allow an remote attacker to take full control of the device with a high-privileged account. The vulnerability exists because a system account has a default and static password. The Telnet service cannot be disabled and this password cannot be changed via standard functionality.

Exploits (1)

nomisec WRITEUP 1 stars
by jet-pentest · poc
https://github.com/jet-pentest/CVE-2020-25749

This repository contains a writeup describing CVE-2020-25749, a hard-coded credentials vulnerability in Rubetek cameras (RV-3406, RV-3409, RV-3411) running firmware versions v339 and v342. The vulnerability allows remote attackers to gain root access via Telnet using static credentials.

Classification
Writeup 100%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Rubetek cameras RV-3406, RV-3409, RV-3411 (firmware v339, v342)
No auth needed
Prerequisites: Network access to the affected device · Telnet client
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Third Party Advisory x_refsource_misc
https://github.com/jet-pentest/CVE-2020-25749

Scores

CVSS v3 9.8
EPSS 0.0306
EPSS Percentile 85.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-798
Status published
Products (6)
rubetek/rv-3406_firmware 339
rubetek/rv-3406_firmware 342
rubetek/rv-3409_firmware 339
rubetek/rv-3409_firmware 342
rubetek/rv-3411_firmware 339
rubetek/rv-3411_firmware 342
Published Sep 25, 2020
Tracked Since Feb 18, 2026