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CVE-2022-3480

HIGHCVSS 7.5/10EPSS 0.85%

Last modified

CVE-2022-3480 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. . EPSS estimates a 0.85% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.85%

53.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhoenixcontactFl Mguard Centerport Firmware< 8.9.0
PhoenixcontactFl Mguard Centerport Vpn-1000 Firmware< 8.9.0
PhoenixcontactFl Mguard Core Tx Firmware< 8.9.0
PhoenixcontactFl Mguard Core Tx Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Delta Tx\/Tx Firmware< 8.9.0
PhoenixcontactFl Mguard Delta Tx\/Tx Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Gt\/Gt Firmware< 8.9.0
PhoenixcontactFl Mguard Gt\/Gt Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Pci4000 Firmware< 8.9.0
PhoenixcontactFl Mguard Pci4000 Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Pcie4000 Firmware< 8.9.0
PhoenixcontactFl Mguard Pcie4000 Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Rs2000 Tx\/Tx-B Firmware< 8.9.0
PhoenixcontactFl Mguard Rs2000 Tx\/Tx Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Rs2005 Tx Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Rs4000 Tx\/Tx Firmware< 8.9.0
PhoenixcontactFl Mguard Rs4000 Tx\/Tx-M Firmware< 8.9.0
PhoenixcontactFl Mguard Rs4000 Tx\/Tx-P Firmware< 8.9.0
PhoenixcontactFl Mguard Rs4000 Tx\/Tx Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Rs4004 Tx\/Dtx Firmware< 8.9.0
PhoenixcontactFl Mguard Rs4004 Tx\/Dtx Vpn Firmware< 8.9.0
PhoenixcontactFl Mguard Smart2 Firmware< 8.9.0
PhoenixcontactFl Mguard Smart2 Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs2000 3g Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs2000 4g Att Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs2000 4g Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs2000 4g Vzw Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs4000 3g Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs4000 4g Att Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs4000 4g Vpn Firmware< 8.9.0
PhoenixcontactTc Mguard Rs4000 4g Vzw Vpn Firmware< 8.9.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-3480?
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.
How severe is CVE-2022-3480?
CVE-2022-3480 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.
How do I fix CVE-2022-3480?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-3480?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST