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Vulnerabilities CVE-2026-19505

CVE-2026-19505

None
Open
TLP:CLEAR

RDK-B WebUI improper cryptographic signature verification vulnerability

NVD CVE.org

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Description

Improper cryptographic signature verification in `jst_functions.c` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to bypass authentication and obtain administrative access via a forged JWT containing an invalid RSA signature.

Details

Confidence
90%
Published
Aug 19, 2026
Last Modified
Aug 19, 2026
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