CVE intelligence and bounded remediation

CVE-2021-27856 — Fatpipeinc Ipvpn Firmware security vulnerability

Critical CVSS 9.8

FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 includes an account named "cmuser" that has administrative privileges and no password. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA002.

Severity
Critical
CVSS
9.8 (3.1)
Published
2021-12-15
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • fatpipeinc / ipvpn_firmware / 5.2.0
  • fatpipeinc / ipvpn_firmware / 6.1.2
  • fatpipeinc / ipvpn_firmware / 7.1.2
  • fatpipeinc / ipvpn_firmware / 9.1.2

Showing 4 representative product identities from 108 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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