CVE-2021-41583

vpn-user-portal (aka eduVPN or Let's Connect!) before 2.3.14, as packaged for Debian 10, Debian 11, and Fedora, allows remote authenticated users to obtain OS filesystem access, because of the interaction of QR codes with an exec that uses the -r option. This can be leveraged to obtain additional VPN access.

• CWE-20

• https://list.surfnet.nl/pipermail/eduvpn-deploy/2021-September/000352.htmlMailing List, Third Party Advisory
• https://github.com/eduvpn/vpn-user-portal/releasesRelease Notes, Third Party Advisory
• https://list.surfnet.nl/pipermail/eduvpn-deploy/2021-September/000352.htmlMailing List, Third Party Advisory

Published

Sep 24, 2021

Last Modified

Jun 17, 2026

Status

Modified

• 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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