CVE-2021-27857: Fatpipeinc IPVPN Firmware

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote, unauthenticated attacker to download a configuration archive. The attacker needs to know or correctly guess the hostname of the target system since the hostname is used as part of the configuration archive file name. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA003.

Affected products

• Fatpipeinc IPVPN Firmware: version 5.2.0 only; version 6.1.2 only; version 7.1.2 only; version 9.1.2 only; version 10.1.2 only; version 10.2.2 only
• Fatpipeinc MPVPN Firmware: version 5.2.0 only; version 6.1.2 only; version 7.1.2 only; version 9.1.2 only; version 10.1.2 only; version 10.2.2 only
• Fatpipeinc WARP Firmware: version 5.2.0 only; version 6.1.2 only; version 7.1.2 only; version 9.1.2 only; version 10.1.2 only; version 10.2.2 only

Published 2021-12-15. Last modified 2026-06-17.