CVE-2022-3480

HIGH

PHOENIX CONTACT FL MGUARD and TC MGUARD < 8.9.0 - Unauthenticated Denial of Service via HTTPS Connection Flood

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Mitigation, Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2022-051/

Scores

CVSS v3 7.5
EPSS 0.0085
EPSS Percentile 53.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (31)
phoenixcontact/fl_mguard_centerport_firmware < 8.9.0
phoenixcontact/fl_mguard_centerport_vpn-1000_firmware < 8.9.0
phoenixcontact/fl_mguard_core_tx_firmware < 8.9.0
phoenixcontact/fl_mguard_core_tx_vpn_firmware < 8.9.0
phoenixcontact/fl_mguard_delta_tx\/tx_firmware < 8.9.0
phoenixcontact/fl_mguard_delta_tx\/tx_vpn_firmware < 8.9.0
phoenixcontact/fl_mguard_gt\/gt_firmware < 8.9.0
phoenixcontact/fl_mguard_gt\/gt_vpn_firmware < 8.9.0
phoenixcontact/fl_mguard_pci4000_firmware < 8.9.0
phoenixcontact/fl_mguard_pci4000_vpn_firmware < 8.9.0
... and 21 more
Published Nov 15, 2022
Tracked Since Feb 18, 2026