CVE•Published 2026-10-26•Modified 2026-10-26•0 articles on news•5 live references•NVD data
CVE-2026-116542
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS percentile
—
Weaknesses (CWE)
Description
Netty netty-tcnative before 2.0.84.Final contains an SNI hostname spoofing vulnerability that allows remote unauthenticated clients to alter hostnames via JNI NewStringUTF decoding. Attackers can send overlong encodings like 0xC0 0x80 in the ClientHello server_name to confuse SNI-based certificate selection, access decisions, and logging.
Timeline
Published 2026-10-26
Modified 2026-10-26
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).
Shodan · vuln tag0 hosts
vuln:CVE-2026-116542Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-116542Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-116542Censys host search filtered to this CVE id.
grep.app
CVE-2026-116542Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-116542GitHub code search for direct mentions.
Google dork
"CVE-2026-116542" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-116542 on GitHub.
We haven't classified any articles referencing CVE-2026-116542 yet. The external references above still apply.