CVE-2026-19506 - Vulnerability Details - OpenCVE

Race condition in `check.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to gain unauthorized access via concurrent authentication requests that exploit shared authentication state.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

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 total

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': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, '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

Wed, 19 Aug 2026 23:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-362

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

Type	Values Removed	Values Added
Description		Race condition in `check.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to gain unauthorized access via concurrent authentication requests that exploit shared authentication state.
Title		RDK-B WebUI race condition 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: 2026-08-19T19:27:55.948Z

Updated: 2026-08-27T15:47:36.279Z

Reserved: 2026-08-10T19:13:43.963Z

Link: CVE-2026-19506

Vulnrichment

Updated: 2026-08-27T15:43:49.846Z

NVD

Status : Awaiting Analysis

Published: 2026-08-19T20:17:14.293

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

Link: CVE-2026-19506

Redhat

No data.

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