What’s Vulnerable › Vulnerabilities
CVE-2023-2673: PHOENIX CONTACT: FL/TC MGUARD prone to Improper Input Validation
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-06-13 · updated 2026-06-17
- Weakness: CWE-1287
Description
Improper Input Validation vulnerability in PHOENIX CONTACT FL/TC MGUARD Family in multiple versions may allow UDP packets to bypass the filter rules and access the solely connected device behind the MGUARD which can be used for flooding attacks.
Affected products
- Phoenixcontact Fl Mguard 2102 Firmware: through 10.1.1
- Phoenixcontact Fl Mguard 4102 Pci Firmware: through 10.1.1
- Phoenixcontact Fl Mguard 4102 Pcie Firmware: through 10.1.1
- Phoenixcontact Fl Mguard 4302 Firmware: through 10.1.1
- Phoenixcontact Fl Mguard Centerport Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Centerport Vpn-1000 Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Core Tx Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Core Tx Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Delta Tx/Tx Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Delta Tx/Tx Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Gt/Gt Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Gt/Gt Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Pci4000 Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Pci4000 Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Pcie4000 Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Pcie4000 Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs2000 Tx/Tx-B Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs2000 Tx/Tx Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs2005 Tx Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs4000 Tx/Tx-M Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs4000 Tx/Tx-P Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs4000 Tx/Tx Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs4004 Tx/Dtx Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Rs4004 Tx/Dtx Vpn Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Smart2 Firmware: through 8.9.0
- Phoenixcontact Fl Mguard Smart2 Vpn Firmware: through 8.9.0
References
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