CVE-2018-5441: Phoenixcontact Mguard Centerport Firmware

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

An Improper Validation of Integrity Check Value issue was discovered in PHOENIX CONTACT mGuard firmware versions 7.2 to 8.6.0. mGuard devices rely on internal checksums for verification of the internal integrity of the update packages. Verification may not always be performed correctly, allowing an attacker to modify firmware update packages.

Affected products

  • Phoenixcontact Mguard Centerport Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard Core Tx VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard Delta Tx/tx Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard Delta Tx/tx VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard Gt/gt Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard Gt/gt VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard PCI4000 VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard PCIE4000 VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS2000 3g VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS2000 4g VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS2000 Tx/tx-B Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS2000 Tx/tx VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS2005 Tx VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4000 3g VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4000 4g VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4000 Tx/tx-P Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4000 Tx/tx Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4000 Tx/tx VPN-M Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4000 Tx/tx VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4004 Tx/dtx Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard RS4004 Tx/dtx VPN Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard SMART2 Firmware: from 7.2.0, up to and including 8.6.0
  • Phoenixcontact Mguard SMART2 VPN Firmware: from 7.2.0, up to and including 8.6.0

Published 2018-01-30. Last modified 2026-06-17.