Is CVE-2020-25749 actively exploited?

No active exploitation of CVE-2020-25749 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-25749 be exploited remotely?

Yes. CVE-2020-25749 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-25749?

CVE-2020-25749 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-25749

CWE-798Published: September 25, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-25749 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.