What’s Vulnerable › Vulnerabilities

CVE-2021-31776

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-29 · updated 2026-06-17
• Weakness: CWE-428

Description

Aviatrix VPN Client before 2.14.14 on Windows has an unquoted search path that enables local privilege escalation to the SYSTEM user, if the machine is misconfigured to allow unprivileged users to write to directories that are supposed to be restricted to administrators.

Affected products

• Aviatrix Vpn Client: before 2.14.14 — fixed in 2.14.14

How to fix

Upgrade to a fixed version: Aviatrix Vpn Client 2.14.14. Check the vendor advisory for mitigations.

References

• https://docs.aviatrix.com/Downloads/samlclient.html
• https://docs.aviatrix.com/Downloads/samlclient.html#windows-win
• https://docs.aviatrix.com/HowTos/changelog.html#aviatrix-vpn-client-changelog
• https://docs.aviatrix.com/Downloads/samlclient.html
• https://docs.aviatrix.com/Downloads/samlclient.html#windows-win
• https://docs.aviatrix.com/HowTos/changelog.html#aviatrix-vpn-client-changelog

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