PatchTheCVECVE-2021-20145: Gryphon Tower routers contain an unprotected openvpn configuration file which can grant attackers access to th
CVE-2021-20145 is a high-severity flaw (CVSS 7.5) affecting gryphon tower firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.3% (top 30%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2021-12-09 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-20145?
gryphon tower firmware: upgrade to newer than 04.0004.12. Exact commands for each OS are on this page.
Is CVE-2021-20145 being exploited?
CVE-2021-20145 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-20145 affect?
CVE-2021-20145 affects gryphon tower firmware. Severity is high (CVSS 7.5). 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 attacke
How urgent is CVE-2021-20145?
Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
Software pages
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