CVE-2026-19507: CWE-400 Uncontrolled Resource Consumption in RDK RDK-B WebUI
Description
CVE-2026-19507 is a high-severity vulnerability in the RDK-B WebUI component of the RDK project. It involves uncontrolled resource consumption in the check.jst file, allowing a remote unauthenticated attacker to cause a denial of service by submitting excessively large password values. This vulnerability does not impact confidentiality or integrity but results in availability disruption.
CVSS v3.1
Score 7.5high
Affected software
RDK
RDK-B WebUI
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-19507) is classified as CWE-400 (Uncontrolled Resource Consumption) and affects the RDK-B WebUI, specifically in the check.jst script. An attacker without authentication can exploit this flaw by sending excessively large password inputs, causing resource exhaustion and denial of service. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability.
Potential Impact
The primary impact is denial of service (DoS) due to resource exhaustion triggered by large password values submitted remotely without authentication. There is no impact on confidentiality or integrity. This could disrupt availability of the affected RDK-B WebUI service.
Mitigation Recommendations
No patch or remediation information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, consider limiting input sizes or implementing rate limiting on the affected interface if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- certcc
- Date Reserved
- 2026-08-10T19:14:02.914Z
- State
- PUBLISHED
Threat ID: 6a860605acd9273b49871aac
Added to database: 08/19/2026, 19:37:41 UTC
Last enriched: 09/11/2026, 06:32:08 UTC
Last updated: 10/04/2026, 10:02:26 UTC
Views: 43
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