CVE-2026-19506

RDK-B WebUI race condition vulnerability

Published Aug 19, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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'}

Type Values Removed Values Added
First Time appeared Rdk
Rdk rdk-b Webui
Vendors & Products Rdk
Rdk rdk-b Webui
Type Values Removed Values Added
Weaknesses CWE-362
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
Weaknesses

Sources

Status
PUBLISHED
Assigner
certcc
Published
Updated
Aug 27, 2026, 3:47 PM
Reserved
Aug 10, 2026, 7:13 PM
Status
Awaiting Analysis
Published
Aug 19, 2026, 8:17 PM
Modified
Sep 3, 2026, 5:42 PM