Is CVE-2021-20145 actively exploited?

No active exploitation of CVE-2021-20145 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-20145 be exploited remotely?

Yes. CVE-2021-20145 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-20145?

CVE-2021-20145 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2021-20145

CWE-287Published: December 9, 2021· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Gryphon Tower routers contain an unprotected openvpn configuration file which can grant attackers access to the Gryphon homebound VPN network which exposes the LAN interfaces of other users' devices connected to the same service. An attacker could leverage this to make configuration changes to, or otherwise attack victims' devices as though they were on an adjacent network.

NVD Source

Technical Analysis

CVE-2021-20145 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), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.