CVE-2026-27869

Deferred Deferred - Pending Action

Slow Loris DoS in Regesta Smart HD-PLC

Publication date: 2026-06-17

Last updated on: 2026-07-01

Assigner: ffb98d57-deaa-4918-a669-5225ccc13e39

Description

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-17

Last Modified

2026-07-01

Generated

2026-07-08

AI Q&A

2026-06-17

EPSS Evaluated

2026-07-06

NVD

CVE-2026-27869

EUVD

EUVD-2026-37578

Affected Vendors & Products

Vendor	Product	Version / Range
teldat	regesta_smart_hd-plc	11.02.05.10.02
teldat	regesta_smart_hd-plc	11.02.06.00.02

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

CVE-2026-27869 is a medium-severity vulnerability affecting the Regesta Smart HD-PLC - TLDPH16D2 industrial router from Teldat.

An attacker with network access to the device's web interface can perform a Slow Loris attack, which involves opening many connections slowly to exhaust the device's resources.

This attack causes a Denial of Service (DoS) on the web interface, making it unavailable to legitimate users.

No user registration or authentication is required to exploit this vulnerability.

Impact Analysis

The vulnerability can cause a Denial of Service (DoS) on the web interface of the affected device.

This means legitimate users will be unable to access or manage the device through its web interface during an attack.

Such disruption can impact network management, monitoring, and potentially the availability of services relying on the device.

Mitigation Strategies

To mitigate the CVE-2026-27869 vulnerability, users should update the firmware of the Regesta Smart HD-PLC - TLDPH16D2 device to the patched version 11.02.06.00.02.

This update is available via the Teldat Client Support Portal and addresses the Denial of Service (DoS) vulnerability caused by the Slow Loris attack on the device's web interface.

Compliance Impact

The provided information does not specify any direct impact of CVE-2026-27869 on compliance with common standards and regulations such as GDPR or HIPAA.

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