What’s Vulnerable › Vulnerabilities

CVE-2020-9435

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-03-12 · updated 2026-06-17
• Weakness: CWE-798

Description

PHOENIX CONTACT TC ROUTER 3002T-4G through 2.05.3, TC ROUTER 2002T-3G through 2.05.3, TC ROUTER 3002T-4G VZW through 2.05.3, TC ROUTER 3002T-4G ATT through 2.05.3, TC CLOUD CLIENT 1002-4G through 2.03.17, and TC CLOUD CLIENT 1002-TXTX through 1.03.17 devices contain a hardcoded certificate (and key) that is used by default for web-based services on the device. Impersonation, man-in-the-middle, or passive decryption attacks are possible if the generic certificate is not replaced by a device-specific certificate during installation.

Affected products

• Phoenixcontact Tc Cloud Client 1002-4G Firmware: through 2.03.17
• Phoenixcontact Tc Cloud Client 1002-Txtx Firmware: through 1.03.17
• Phoenixcontact Tc Router 2002T-3G Firmware: through 2.05.3
• Phoenixcontact Tc Router 3002T-4G Att Firmware: through 2.05.3
• Phoenixcontact Tc Router 3002T-4G Firmware: through 2.05.3
• Phoenixcontact Tc Router 3002T-4G Vzw Firmware: through 2.05.3

References

• http://packetstormsecurity.com/files/156729/Phoenix-Contact-TC-Router-TC-Cloud-Client-Command-Injection.html
• http://seclists.org/fulldisclosure/2020/Mar/15
• https://cert.vde.com/en-us/advisories/
• https://cert.vde.com/en-us/advisories/vde-2020-003
• http://packetstormsecurity.com/files/156729/Phoenix-Contact-TC-Router-TC-Cloud-Client-Command-Injection.html
• http://seclists.org/fulldisclosure/2020/Mar/15
• https://cert.vde.com/en-us/advisories/
• https://cert.vde.com/en-us/advisories/vde-2020-003

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