CVE•Published 2026-08-19•Modified 2026-09-03•1 article on news•5 live references•NVD data
CVE-2026-19505
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
32
Exploit Prediction Scoring System · top 68% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-08-19
Modified 2026-09-03
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-19505Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-19505Censys host search filtered to this CVE id.
grep.app
CVE-2026-19505Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-19505GitHub code search for direct mentions.
Google dork
"CVE-2026-19505" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.