🛡️ CVE-2023-2673 — fl-mguard-2102-firmware

🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-1287 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Affected software

CVE-2023-2673 is recorded against 26 packages.

  • fl-mguard-2102-firmware (fixed in 10.1.1)
  • fl-mguard-4102-pci-firmware (fixed in 10.1.1)
  • fl-mguard-4102-pcie-firmware (fixed in 10.1.1)
  • fl-mguard-4302-firmware (fixed in 10.1.1)
  • fl-mguard-centerport-firmware (fixed in 8.9.0)
  • fl-mguard-centerport-vpn-1000-firmware (fixed in 8.9.0)
  • fl-mguard-core-tx-firmware (fixed in 8.9.0)
  • fl-mguard-core-tx-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-delta-tx\/tx-firmware (fixed in 8.9.0)
  • fl-mguard-delta-tx\/tx-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-gt\/gt-firmware (fixed in 8.9.0)
  • fl-mguard-gt\/gt-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-pci4000-firmware (fixed in 8.9.0)
  • fl-mguard-pci4000-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-pcie4000-firmware (fixed in 8.9.0)
  • fl-mguard-pcie4000-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-rs2000-tx\/tx-b-firmware (fixed in 8.9.0)
  • fl-mguard-rs2000-tx\/tx-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-rs2005-tx-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-rs4000-tx\/tx-m-firmware (fixed in 8.9.0)
  • fl-mguard-rs4000-tx\/tx-p-firmware (fixed in 8.9.0)
  • fl-mguard-rs4000-tx\/tx-vpn-firmware (fixed in 8.9.0)
  • fl-mguard-rs4004-tx\/dtx-firmware (fixed in 8.9.0)
  • fl-mguard-rs4004-tx\/dtx-vpn-firmware (fixed in 8.9.0)
Show the remaining 2 packages
  • fl-mguard-smart2-firmware (fixed in 8.9.0)
  • fl-mguard-smart2-vpn-firmware (fixed in 8.9.0)

Timeline and source

Published on 13 June 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

cert.vde.com
cert.vde.com

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE CWE-1287
Public Exploit ✅ No
Source NVD
Published 2023-06-13
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
fl-mguard-2102-firmware 10.1.1
fl-mguard-4102-pci-firmware 10.1.1
fl-mguard-4102-pcie-firmware 10.1.1
fl-mguard-4302-firmware 10.1.1
fl-mguard-centerport-firmware 8.9.0
fl-mguard-centerport-vpn-1000-firmware 8.9.0
fl-mguard-core-tx-firmware 8.9.0
fl-mguard-core-tx-vpn-firmware 8.9.0
fl-mguard-delta-tx\/tx-firmware 8.9.0
fl-mguard-delta-tx\/tx-vpn-firmware 8.9.0
fl-mguard-gt\/gt-firmware 8.9.0
fl-mguard-gt\/gt-vpn-firmware 8.9.0
fl-mguard-pci4000-firmware 8.9.0
fl-mguard-pci4000-vpn-firmware 8.9.0
fl-mguard-pcie4000-firmware 8.9.0
fl-mguard-pcie4000-vpn-firmware 8.9.0
fl-mguard-rs2000-tx\/tx-b-firmware 8.9.0
fl-mguard-rs2000-tx\/tx-vpn-firmware 8.9.0
fl-mguard-rs2005-tx-vpn-firmware 8.9.0
fl-mguard-rs4000-tx\/tx-m-firmware 8.9.0
fl-mguard-rs4000-tx\/tx-p-firmware 8.9.0
fl-mguard-rs4000-tx\/tx-vpn-firmware 8.9.0
fl-mguard-rs4004-tx\/dtx-firmware 8.9.0
fl-mguard-rs4004-tx\/dtx-vpn-firmware 8.9.0
fl-mguard-smart2-firmware 8.9.0
fl-mguard-smart2-vpn-firmware 8.9.0

References

Mitigation, Third Party Advisory https://cert.vde.com/en/advisories/VDE-2023-010/
Mitigation, Third Party Advisory https://cert.vde.com/en/advisories/VDE-2023-010/

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