# PHOENIX CONTACT: FL/TC MGUARD prone to Improper Input Validation

CVE record · `CVE-2023-2673`

- **Identifiers:** `CVE-2023-2673`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **CNA:** CERTVDE
- **Weakness (CWE):** [CWE-1287](https://cwe.mitre.org/data/definitions/1287.html)
- **Tags:** [CWE-1287](https://agentprime.io/advisories/tag/cwe-1287.md)
- **Technologies:** [PHOENIX CONTACT FL MGUARD 2102](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-2102.md) · [PHOENIX CONTACT FL MGUARD 4102 PCI](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-4102-pci.md) · [PHOENIX CONTACT FL MGUARD 4102 PCIE](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-4102-pcie.md) · [PHOENIX CONTACT FL MGUARD 4302](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-4302.md) · [PHOENIX CONTACT FL MGUARD CENTERPORT](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-centerport.md) · [PHOENIX CONTACT FL MGUARD CENTERPORT VPN-1000](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-centerport-vpn-1000.md) · [PHOENIX CONTACT FL MGUARD CORE TX](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-core-tx.md) · [PHOENIX CONTACT FL MGUARD CORE TX VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-core-tx-vpn.md) · [PHOENIX CONTACT FL MGUARD DELTA TX/TX](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-delta-tx-tx.md) · [PHOENIX CONTACT FL MGUARD DELTA TX/TX VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-delta-tx-tx-vpn.md) · [PHOENIX CONTACT FL MGUARD GT/GT](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-gt-gt.md) · [PHOENIX CONTACT FL MGUARD GT/GT VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-gt-gt-vpn.md) · [PHOENIX CONTACT FL MGUARD PCI4000](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-pci4000.md) · [PHOENIX CONTACT FL MGUARD PCI4000 VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-pci4000-vpn.md) · [PHOENIX CONTACT FL MGUARD PCIE4000](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-pcie4000.md) · [PHOENIX CONTACT FL MGUARD PCIE4000 VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-pcie4000-vpn.md) · [PHOENIX CONTACT FL MGUARD RS2000 TX/TX-B](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-rs2000-tx-tx-b.md) · [PHOENIX CONTACT FL MGUARD RS2000 TX/TX VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-rs2000-tx-tx-vpn.md) · [PHOENIX CONTACT FL MGUARD RS2005 TX VPN](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-rs2005-tx-vpn.md) · [PHOENIX CONTACT FL MGUARD RS4000 TX/TX-M](https://agentprime.io/advisories/technology/phoenix-contact-fl-mguard-rs4000-tx-tx-m.md)
- **Published:** 13 Jun 2023
- **Updated:** 3 Jan 2025
- **Reviewed by a person:** No

Published by the CVE Program (CNA: CERTVDE) at 13 Jun 2023, 06:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: PHOENIX CONTACT. Product: FL MGUARD 2102.
  - affected: `10.1.1 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD 4102 PCI.
  - affected: `10.1.1 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD 4102 PCIE.
  - affected: `10.1.1 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD 4302.
  - affected: `10.1.1 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD CENTERPORT.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD CENTERPORT VPN-1000.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD CORE TX.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD CORE TX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD DELTA TX/TX.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD DELTA TX/TX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD GT/GT.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD GT/GT VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD PCI4000.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD PCI4000 VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD PCIE4000.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD PCIE4000 VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS2000 TX/TX-B.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS2000 TX/TX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS2005 TX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS4000 TX/TX-M.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS4000 TX/TX-P.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS4000 TX/TX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS4000 TX/TX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS4004 TX/DTX.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD RS4004 TX/DTX VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD SMART2.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected
- Vendor: PHOENIX CONTACT. Product: FL MGUARD SMART2 VPN.
  - affected: `8.9.0 and earlier` (semver)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`, from CNA (CERTVDE)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0062, the 49th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 13 Jun 2023. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2023-2673](https://www.cve.org/CVERecord?id=CVE-2023-2673)
- [NVD: CVE-2023-2673](https://nvd.nist.gov/vuln/detail/CVE-2023-2673)

### References from the CNA

- <https://cert.vde.com/en/advisories/VDE-2023-010/>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2023-2673>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2023-2673/>. Everything for agents: <https://agentprime.io/llms.txt>.