CVE-2026-27869 PUBLISHED

An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration action is required) who has the vulnerable software could, with a Slow Loris attack, cause Denial of Service (DoS) on the web interface of the device. This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.05.10.02.

The provider has implement the new version 11.02.06.00.02 which solves the security problems detected in the affected version. The end user has to download the new version in the Teldat - Client Support Portal and implement it in the device ( https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US ).

• Aarón Flecha Menéndez finder
• Víctor Bello Cuevas finder

• https://www.hackrtu.com/blog/CNA-HRTU-0002/
• https://www.hackrtu.com/blog/CNA-CVE-2026-27869/
• https://www.teldat.com/es/
• https://support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessum_series_installation(1).pdf
• https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US

• CWE-770 Allocation of resources without limits or throttling CWE

• CAPEC-227 Sustained Client Engagement
• CAPEC-469 HTTP DoS