Is CVE-2021-36705 actively exploited?

No active exploitation of CVE-2021-36705 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-36705 be exploited remotely?

Yes. CVE-2021-36705 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-36705?

CVE-2021-36705 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-36705

CRITICAL

CVE-2021-36705

CWE-78Published: August 6, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In ProLink PRC2402M V1.0.18 and older, the set_TR069 function in the adm.cgi binary, accessible with a page parameter value of TR069 contains a trivial command injection where the value of the TR069_local_port parameter is passed directly to system.

NVD Source

Technical Analysis

CVE-2021-36705 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.