Read the docs
TI-2020-10014 Aliases CVE-2020-12521GHSA-vp46-jgwp-q8w3

Improper input validation in Phoenix Contact AXC F 1152

Priority LOW 29CWE-20Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.

Why it matters now

EPSS 0.00459 40th percentileScored 2026-11-07
Fix Fixed AXC F 1152 (1151412) (Phoenix Contact): 2021.0 LTSAXC F 2152 (2404267) (Phoenix Contact): 2021.0 LTS+4 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Phoenix ContactAXC F 1152 (1151412)before 2021.0 LTS2021.0 LTSPatch availableCNA
Phoenix ContactAXC F 2152 (2404267)before 2021.0 LTS2021.0 LTSPatch availableCNA
Phoenix ContactAXC F 3152 (1069208)before 2021.0 LTS2021.0 LTSPatch availableCNA
Phoenix ContactRFC 4072S (1051328before 2021.0 LTS2021.0 LTSPatch availableCNA
Phoenix ContactAXC F 2152 Starterkit (1046568)before 2021.0 LTS2021.0 LTSPatch availableCNA
Phoenix ContactPLCnext Technology Starterkit (1188165)before 2021.0 LTS2021.0 LTSPatch availableCNA
  • AXC F 1152 (1151412) VendorPhoenix Contact Affected before 2021.0 LTS Fixed in 2021.0 LTS Patch available CNA
  • AXC F 2152 (2404267) VendorPhoenix Contact Affected before 2021.0 LTS Fixed in 2021.0 LTS Patch available CNA
  • AXC F 3152 (1069208) VendorPhoenix Contact Affected before 2021.0 LTS Fixed in 2021.0 LTS Patch available CNA
  • RFC 4072S (1051328 VendorPhoenix Contact Affected before 2021.0 LTS Fixed in 2021.0 LTS Patch available CNA
  • AXC F 2152 Starterkit (1046568) VendorPhoenix Contact Affected before 2021.0 LTS Fixed in 2021.0 LTS Patch available CNA
  • PLCnext Technology Starterkit (1188165) VendorPhoenix Contact Affected before 2021.0 LTS Fixed in 2021.0 LTS Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*before 2021.0VulnerablePhoenixcontact
cpe:2.3:h:phoenixcontact:axc_f_1152:-:*:*:*:*:*:*:*not specified by NVDRunning onPhoenixcontact
cpe:2.3:h:phoenixcontact:axc_f_2152:-:*:*:*:*:*:*:*not specified by NVDRunning onPhoenixcontact
cpe:2.3:h:phoenixcontact:axc_f_3152:-:*:*:*:*:*:*:*not specified by NVDRunning onPhoenixcontact
cpe:2.3:h:phoenixcontact:rfc_4072s:-:*:*:*:*:*:*:*not specified by NVDRunning onPhoenixcontact
cpe:2.3:h:phoenixcontact:axc_f_2152_starterkit:-:*:*:*:*:*:*:*not specified by NVDRunning onPhoenixcontact
cpe:2.3:h:phoenixcontact:plcnext_technology_starterkit:-:*:*:*:*:*:*:*not specified by NVDRunning onPhoenixcontact
  • cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:* Versions before 2021.0 Vulnerable ·Phoenixcontact
  • cpe:2.3:h:phoenixcontact:axc_f_1152:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Phoenixcontact
  • cpe:2.3:h:phoenixcontact:axc_f_2152:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Phoenixcontact
  • cpe:2.3:h:phoenixcontact:axc_f_3152:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Phoenixcontact
  • cpe:2.3:h:phoenixcontact:rfc_4072s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Phoenixcontact
  • cpe:2.3:h:phoenixcontact:axc_f_2152_starterkit:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Phoenixcontact
  • cpe:2.3:h:phoenixcontact:plcnext_technology_starterkit:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Phoenixcontact

Remediation

  • Fix · CNA AXC F 1152 (1151412) (Phoenix Contact) Fixed in 2021.0 LTS
  • Fix · CNA AXC F 2152 (2404267) (Phoenix Contact) Fixed in 2021.0 LTS
  • Fix · CNA AXC F 3152 (1069208) (Phoenix Contact) Fixed in 2021.0 LTS
  • Fix · CNA RFC 4072S (1051328 (Phoenix Contact) Fixed in 2021.0 LTS
  • Fix · CNA AXC F 2152 Starterkit (1046568) (Phoenix Contact) Fixed in 2021.0 LTS
  • Fix · CNA PLCnext Technology Starterkit (1188165) (Phoenix Contact) Fixed in 2021.0 LTS

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Phoenix Contact AXC F 1152 (1151412), AXC F 2152 (2404267) and 4 more products 2021.0 LTS

    4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2020-10013 Improper privilege management in Phoenix Contact AXC F 1152Priority MEDIUM 44
    • TI-2020-10011 Cross-site scripting in Phoenix Contact AXC F 1152Priority MEDIUM 41
    • TI-2020-10012 Information disclosure in Phoenix Contact AXC F 1152Priority LOW 26
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-12521
  2. 2026-10-03 Alias added: GHSA-vp46-jgwp-q8w3

References

Advisory 1

  • TI-2014-07463 Phoenix Contact Software ProConOs and MultiProg Missing Authentication for Critical Function CVSS 2.0CRITICAL 10.0
  • TI-2024-17093 PHOENIX CONTACT: Remote code execution in CHARX Series CVSS 3.1CRITICAL 9.8
  • TI-2022-13692 Insufficient Verification of Data Vulnerability in PHOENIX CONTACT classic line industrial controllers CVSS 3.1CRITICAL 9.8
  • TI-2026-21959 Remote code execution via uploading a malicious IODD file CVSS 3.1CRITICAL 9.8
  • TI-2026-21940 Authentication Bypass in _account_log CVSS 3.1CRITICAL 9.8
  • TI-2023-03334 PHOENIX CONTACT: OS Command Injection in WP 6xxx Web panels CVSS 3.1CRITICAL 10.0
See all 194 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences