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Medium severity5.3NVD Advisory· Published Jun 13, 2023· Updated Jun 17, 2026

CVE-2023-2673

CVE-2023-2673

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

53
  • Phoenixcontact/Mguard Firmware29 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_2102_firmware:*:*:*:*:*:*:*:*+ 28 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_2102_firmware:*:*:*:*:*:*:*:*range: <=10.1.1
    • cpe:2.3:o:phoenixcontact:fl_mguard_4302_firmware:*:*:*:*:*:*:*:*range: <=10.1.1
    • cpe:2.3:o:phoenixcontact:fl_mguard_core_tx_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_core_tx_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_delta_tx\/tx_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_gt\/gt_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_gt\/gt_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs2000_tx\/tx-b_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs2000_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs2005_tx_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx-m_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx-p_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\/dtx_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_smart2_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_smart2_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
  • Phoenixcontact/Fl Mguard Pcie4000 Firmware6 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_4102_pci_firmware:*:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_4102_pci_firmware:*:*:*:*:*:*:*:*range: <=10.1.1
    • cpe:2.3:o:phoenixcontact:fl_mguard_pci4000_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_pcie4000_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
  • Phoenixcontact/Fl Mguard 4102 Pcie Firmware2 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_4102_pcie_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_4102_pcie_firmware:*:*:*:*:*:*:*:*range: <=10.1.1
    • (no CPE)range: 0
  • Phoenixcontact/Fl Mguard Centerport VPN 1000 Firmware4 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_centerport_firmware:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_centerport_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_centerport_vpn-1000_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • (no CPE)range: 0
    • (no CPE)range: 0
  • Phoenixcontact/Tc Mguard Rs4000 4g Vzw VPN Firmware6 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_delta_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_delta_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_pci4000_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • cpe:2.3:o:phoenixcontact:fl_mguard_pcie4000_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • (no CPE)range: 0
    • (no CPE)range: 0
    • (no CPE)range: 0
  • Phoenixcontact/Tc Mguard Rs4000 4g Att VPN Firmware2 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • (no CPE)range: 0
  • Phoenixcontact/Fl Mguard Rs4004 Tx\/dtx VPN Firmware2 versions
    cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\/dtx_vpn_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\/dtx_vpn_firmware:*:*:*:*:*:*:*:*range: <=8.9.0
    • (no CPE)range: 0
  • Phoenixcontact/FL/TC MGUARD Familyllm-fuzzy
  • Phoenixcontact/Fl Mguard Dmcpe-rescue
    Range: 0

Patches

Vulnerability mechanics

References

1

News mentions

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