CVE-2026-19509

RDK WebUI DOS vulnerability

State: Published
Severity: 6.5 Medium
Published: Aug 19, 2026
Updated: Aug 27, 2026
Reserved: Aug 10, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
RDK-B WebUIRDK	rdkb-2025q4-kirkstoneAffected

References

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

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