Is CVE-2021-23146 actively exploited?

No active exploitation of CVE-2021-23146 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-23146 be exploited remotely?

Yes. CVE-2021-23146 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-23146?

CVE-2021-23146 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2021-23146

CWE-1023Published: November 18, 2021· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

An Incomplete Comparison with Missing Factors vulnerability in the Gallagher Controller allows an attacker to bypass PIV verification. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 (MR3); 8.30 versions prior to 8.30.1359 (MR3); 8.20 versions prior to 8.20.1259 (MR5); 8.10 versions prior to 8.10.1284 (MR7); version 8.00 and prior versions.

NVD Source

Technical Analysis

CVE-2021-23146 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 full integrity compromise (data manipulation), with a CVSS base score of 7.5.