CVE-2021-27406

8.8 highEPSS 1.2%

High (8.8) in perfact openvpn-client. EPSS 1.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWEs: CWE-610, CWE-15
Published: 2022-10-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

perfact:openvpn-client

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01
https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01

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