CVE-2026-19509mediumCWE-20

CVE-2026-19509: medium-severity vulnerability in RDK-B WebUI

RDK WebUI DOS vulnerability

Published · Updated

Follow this CVE+ Monitor RDK-B WebUI

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
RDK · RDK-B WebUI
Related CVEs — RDK-B WebUI

In the same product, most dangerous first.

CVE-2026-19508CRITICALRDK WebUI heap-based buffer overflow vulnerabilityEPSS 1.0%CVE-2026-19507HIGHRDK WebUI uncontrolled resource consumptionEPSS 0.6%CVE-2026-19505CRITICALRDK-B WebUI improper cryptographic signature verification vulnerabilityEPSS 0.5%CVE-2026-19506HIGHRDK-B WebUI race condition vulnerabilityEPSS 0.5%