CVE intelligence and bounded remediation

CVE-2022-22509 — Phoenixcontact Fl Switch 2005 Firmware security vulnerability

High CVSS 9

In Phoenix Contact FL SWITCH Series 2xxx in version 3.00 an incorrect privilege assignment allows an low privileged user to enable full access to the device configuration.

Severity
High
CVSS
9 (2.0)
Published
2022-02-02
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-269

Affected products

  • phoenixcontact / fl_switch_2005_firmware / 3.00
  • phoenixcontact / fl_switch_2008_firmware / 3.00
  • phoenixcontact / fl_switch_2008f_firmware / 3.00
  • phoenixcontact / fl_switch_2016_firmware / 3.00
  • phoenixcontact / fl_switch_2105_firmware / 3.00
  • phoenixcontact / fl_switch_2108_firmware / 3.00

Showing 6 representative product identities from 65 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Privilege escalation and unsafe privilege management

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Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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