RDK WebUI DOS vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19509
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-19 20:17:14 UTC
Updated2026-09-03 17:42:23 UTC
DescriptionImproper 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.003200000 probability, percentile 0.246120000 (date 2026-09-07)

Problem Types: CWE-20 | CWE-20 Improper Input Validation | CWE-20 CWE-20 Improper Input Validation

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA RDK RDK-B WebUI affected rdkb-2025q4-kirkstone Not specified

References

ReferenceSourceLinkTags
whitehats.pwr.edu.pl/blog/2026-08-19-multiple-vulnerabilities-in-rdkb [email protected] whitehats.pwr.edu.pl
developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/compo... [email protected] developer.rdkcentral.com
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