Is CVE-2020-6144 actively exploited?

No active exploitation of CVE-2020-6144 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-6144 be exploited remotely?

Yes. CVE-2020-6144 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-6144?

CVE-2020-6144 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-6144

CWE-96Published: September 1, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A remote code execution vulnerability exists in the install functionality of OS4Ed openSIS 7.4. The username variable which is set at line 121 in install/Step5.php allows for injection of PHP code into the Data.php file that it writes. An attacker can send an HTTP request to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2020-6144 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.