CVE-2021-27406
Last modified
CVE-2021-27406 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.
Description
An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Perfact | Openvpn-Client | <= 1.4.1.0 |
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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