Vulnerability Description
An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, registration action IS required) who has the vulnerable software could, introduce arbitrary JavaScript by injecting a Cross-site Scripting (XSS) payload into the 'Hostname' field of the configuration file resulting in a XSS in the path /upgrade/query.php?cmd=p+3%3Bversion. This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.05.10.02.
Related Weaknesses (CWE)
References
- https://support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessu
- https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-suppor
- https://www.hackrtu.com/blog/CNA-CVE-2026-27870/
- https://www.hackrtu.com/blog/CNA-HRTU-0003/
- https://www.teldat.com/es/
FAQ
What is CVE-2026-27870?
CVE-2026-27870 is a documented vulnerability. An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, registration action IS required) who has the vulnerable software could, introduce arbitrary JavaSc...
How severe is CVE-2026-27870?
CVSS scoring is not yet available for CVE-2026-27870. Check NVD for updates.
Is there a patch for CVE-2026-27870?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.