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CVE-2026-90822 – Unauthenticated Remote Command Execution (RCE) – FatPipe MPVPN/WARP/IPVPN 10.1.2r60

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Summary

CVE-2026-90822 is a critical OS command injection vulnerability (CWE-78) affecting FatPipe Networks MPVPN, WARP, and IPVPN appliances running firmware version 10.1.2r60p100. An unauthenticated remote attacker with access to the appliance’s management interface can send crafted input to the AuthFormServlet endpoint, causing that data to be processed by a shell and resulting in arbitrary command execution as root. The flaw carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: Authentication data submitted to the AuthFormServlet endpoint is passed to a shell (via the xtremed daemon) without proper neutralization of special characters, enabling OS command injection.
  • Trigger conditions: The vulnerable code path is only reachable if the appliance’s management interface has been enabled; it is disabled by default.
  • Attack vector: Network-based, no authentication and no user interaction required (AV:N/AC:L/PR:N/UI:N).
  • Impact: Successful exploitation allows an attacker to execute arbitrary operating system commands with root privileges, leading to complete compromise of confidentiality, integrity, and availability of the affected device.

Affected software

  • FatPipe MPVPN, firmware version 10.1.2r60p100
  • FatPipe WARP, firmware version 10.1.2r60p100
  • FatPipe IPVPN, firmware version 10.1.2r60p100

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Contact FatPipe Support to obtain an updated firmware release that addresses this vulnerability, and upgrade from 10.1.2r60p100 as soon as possible.
  • If no patch is yet available/applied:
    • Disable the management interface if it is not required for operations.
    • If the management interface must remain enabled, restrict access to trusted administrative networks only.
    • Implement WAN access control lists (ACLs) to limit reachability of the management interface to explicitly trusted source addresses.
    • Ensure the management interface is never exposed directly to the public Internet.

References

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