High severity7.5NVD Advisory· Published Nov 15, 2022· Updated Jun 17, 2026
CVE-2022-3480
CVE-2022-3480
Description
A remote, unauthenticated attacker could cause a denial-of-service of PHOENIX CONTACT FL MGUARD and TC MGUARD devices below version 8.9.0 by sending a larger number of unauthenticated HTTPS connections originating from different source IP’s. Configuring firewall limits for incoming connections cannot prevent the issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
64cpe: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
cpe:2.3:o:phoenixcontact:fl_mguard_core_tx_firmware:*:*:*:*:*:*:*:*+ 24 more
- 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
cpe:2.3:o:phoenixcontact:fl_mguard_delta_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*+ 7 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
- cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
cpe:2.3:o:phoenixcontact:fl_mguard_pci4000_vpn_firmware:*:*:*:*:*:*:*:*+ 3 more
- 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
cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- (no CPE)range: 0
- (no CPE)range: 0
cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:phoenixcontact:fl_mguard_rs4000_tx\/tx_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_4g_vzw_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_3g_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_att_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
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
cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_3g_vpn_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_3g_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_4g_att_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- (no CPE)range: 0
- (no CPE)range: 0
cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_4g_vpn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_4g_vpn_firmware:*:*:*:*:*:*:*:*range: <8.9.0
- (no CPE)range: 0
- Range: <8.9.0
<8.9.0+ 1 more
- (no CPE)range: <8.9.0
- (no CPE)range: 0
Patches
Vulnerability mechanics
References
1- cert.vde.com/en/advisories/VDE-2022-051/nvdMitigationThird Party Advisory
News mentions
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