CVE-2023-3526
9.6 · CRITICALOverview
CVE-2023-3526 is a critical-severity vulnerability affecting phoenixcontact cloud_client_1101t-tx_firmware. It was published on August 8, 2023 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In PHOENIX CONTACTs TC ROUTER and TC CLOUD CLIENT in versions prior to 2.07.2 as well as CLOUD CLIENT 1101T-TX/TX prior to 2.06.10 an unauthenticated remote attacker could use a reflective XSS within the license viewer page of the devices in order to execute code in the context of the user's browser.
Remediation
Check the references section for vendor advisories and patches from phoenixcontact. Update cloud_client_1101t-tx_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| phoenixcontact | cloud_client_1101t-tx_firmware | >= 0, < 2.06.10 | Affected |
| phoenixcontact | tc_cloud_client_1002-4g_att_firmware | >= 0, < 2.07.2 | Affected |
| phoenixcontact | tc_cloud_client_1002-4g_firmware | >= 0, < 2.07.2 | Affected |
| phoenixcontact | tc_cloud_client_1002-4g_vzw_firmware | >= 0, < 2.07.2 | Affected |
| phoenixcontact | tc_router_3002t-4g_att_firmware | >= 0, < 2.07.2 | Affected |
| phoenixcontact | tc_router_3002t-4g_firmware | >= 0, < 2.07.2 | Affected |
| phoenixcontact | tc_router_3002t-4g_vzw_firmware | >= 0, < 2.07.2 | Affected |
References
Frequently Asked Questions
What is CVE-2023-3526?
CVE-2023-3526 is a critical-severity vulnerability affecting phoenixcontact cloud_client_1101t-tx_firmware. It was published on August 8, 2023 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
How severe is CVE-2023-3526?
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-3526?
Check the references section for vendor advisories and patches from phoenixcontact. Update cloud_client_1101t-tx_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-3526?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-3526 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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