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CVE-2026-19505 RDK-B WebUI improper cryptographic signature verification vulnerability

🗓️ 19 Aug 2026 19:27:40Reported by certccType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

RDK-B WebUI 2025q4 allows remote authentication bypass via forged JWT with invalid RSA signature in jst_functions.c.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-19505
19 Aug 202619:27
cve
euvd
EUVD
EUVD-2026-62711
19 Aug 202619:27
euvd
nvd
NVD
CVE-2026-19505
19 Aug 202620:17
nvd
ptsecurity
Positive Technologies
PT-2026-78636
19 Aug 202600:00
ptsecurity
cert
CERT
RDK-B WebUI contains multiple vulnerabilities
19 Aug 202600:00
cert
[
  {
    "vendor": "RDK",
    "product": "RDK-B WebUI",
    "versions": [
      {
        "status": "affected",
        "version": "rdkb-2025q4-kirkstone"
      }
    ]
  }
]

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