Is CVE-2020-12505 actively exploited?

No active exploitation of CVE-2020-12505 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-12505 be exploited remotely?

Yes. CVE-2020-12505 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-12505?

CVE-2020-12505 has a CVSS score of 8.2 (HIGH).

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HIGH

CVE-2020-12505

CWE-306Published: September 30, 2020· Updated: Jun 17, 2026

8.2

CVSS v3.1

Official Description

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852, WAGO 750-880/xxx-xxx, WAGO 750-881, WAGO 750-831/xxx-xxx, WAGO 750-882, WAGO 750-885/xxx-xxx, WAGO 750-889 in versions FW07 and below.

NVD Source

Technical Analysis

CVE-2020-12505 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 availability disruption (denial of service), with a CVSS base score of 8.2.