{"id":"CVE-2022-3480","aliases":["EUVD-2022-42852","GHSA-4pwc-87fv-q86q"],"status":"published","title":"Denial-of-Service vulnerability in PHOENIX CONTACT mGuard product family","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00926,"percentile":0.60777,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2022-11-15T10:58:25Z","modified":"2026-06-17T04:59:36Z","products":[{"vendor":"phoenix contact","product":"fl mguard centerport"},{"vendor":"phoenix contact","product":"fl mguard centerport vpn-1000"},{"vendor":"phoenix contact","product":"fl mguard core tx"},{"vendor":"phoenix contact","product":"fl mguard core tx vpn"},{"vendor":"phoenix contact","product":"fl mguard delta tx/tx"},{"vendor":"phoenix contact","product":"fl mguard delta tx/tx vpn"},{"vendor":"phoenix contact","product":"fl mguard gt/gt"},{"vendor":"phoenix contact","product":"fl mguard gt/gt 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vpn"},{"vendor":"phoenixcontact","product":"fl_mguard_centerport_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_centerport_vpn-1000_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_core_tx_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_core_tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_delta_tx\\/tx_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_delta_tx\\/tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_gt\\/gt_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_gt\\/gt_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_pci4000_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_pci4000_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_pcie4000_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_pcie4000_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs2000_tx\\/tx-b_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs2000_tx\\/tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs2005_tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4000_tx\\/tx-m_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4000_tx\\/tx-p_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4000_tx\\/tx_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4000_tx\\/tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4004_tx\\/dtx_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4004_tx\\/dtx_vpn_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_smart2_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_smart2_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs2000_3g_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs2000_4g_att_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs2000_4g_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs2000_4g_vzw_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_3g_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_4g_att_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_4g_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_4g_vzw_vpn_firmware"}],"references":[{"url":"https://cert.vde.com/en/advisories/VDE-2022-051/","tags":["x_transferred","Mitigation","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-3480"},{"url":"https://github.com/advisories/GHSA-4pwc-87fv-q86q"}],"sources":{"cve":[{"id":"CVE-2022-3480","title":"Denial-of-Service vulnerability in PHOENIX CONTACT mGuard product family","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.\n","status":"published","published":"2022-11-15T10:58:25.78Z","modified":"2025-04-29T20:13:45.498Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:34:33.24035Z"}],"euvd":[{"id":"EUVD-2022-42852","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.\n","status":"published","published":"2022-11-15T10:58:25Z","modified":"2025-04-29T20:13:45Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:00.012701Z"}],"ghsa":[{"id":"GHSA-4pwc-87fv-q86q","title":"A remote, unauthenticated attacker could cause a denial-of-service of PHOENIX CONTACT FL MGUARD...","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.","status":"published","published":"2023-07-06T19:24:04Z","modified":"2023-07-06T19:24:08Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:54:41.037164Z"}],"nvd":[{"id":"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.\n","status":"published","published":"2022-11-15T11:15:12.1Z","modified":"2026-06-17T04:59:36.397Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:07:32.395456Z"}]}}