CVE-2026-19509 - Vulnerability Details - OpenCVE

Improper input validation in `ajaxSet_wireless_network_configuration.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows an authenticated attacker to cause denial of service via a crafted `ssid_number` parameter.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Rdk	Rdk-b Webui

No data.

No data.

References

Link	Providers
https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/components/webui/
https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/

History

Thu, 27 Aug 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 20 Aug 2026 09:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Rdk Rdk rdk-b Webui
Vendors & Products		Rdk Rdk rdk-b Webui

Thu, 20 Aug 2026 00:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-20 CWE-400

Wed, 19 Aug 2026 19:30:00 +0000

Type	Values Removed	Values Added
Description		Improper input validation in `ajaxSet_wireless_network_configuration.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows an authenticated attacker to cause denial of service via a crafted `ssid_number` parameter.
Title		RDK WebUI DOS vulnerability
References		https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/components/webui/ https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/

MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2026-08-19T19:28:14.342Z

Updated: 2026-08-27T15:31:36.658Z

Reserved: 2026-08-10T19:14:27.939Z

Link: CVE-2026-19509

Vulnrichment

Updated: 2026-08-27T15:31:21.204Z

NVD

Status : Awaiting Analysis

Published: 2026-08-19T20:17:14.770

Modified: 2026-09-03T17:42:23.907

Link: CVE-2026-19509

Redhat

No data.

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