Is CVE-2020-12773 actively exploited?

No active exploitation of CVE-2020-12773 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-12773 be exploited remotely?

Yes. CVE-2020-12773 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-12773?

CVE-2020-12773 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2020-12773

NVD-CWE-noinfoPublished: June 8, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

A security misconfiguration vulnerability exists in the SDK of some Realtek ADSL/PON Modem SoC firmware, which allows attackers using a default password to execute arbitrary commands remotely via the build-in network monitoring tool.

NVD Source

Technical Analysis

CVE-2020-12773 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 8.8.