CVE•Published 2017-04-11•Modified 2026-05-29•1 article on news•6 live references•NVD data
CVE-2016-1908Openbsd · Openssh
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
84
Exploit Prediction Scoring System · top 16% of all CVEs
Weaknesses (CWE)
Description
The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.
Timeline
Published 2017-04-11
Modified 2026-05-29
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 tag817,552 hosts
vuln:CVE-2016-1908Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Openbsd Openssh"All exposed Openbsd Openssh instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Openssh"HTTP body or banner mentions "Openssh" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2016-1908Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2016-1908Censys host search filtered to this CVE id.
grep.app
CVE-2016-1908Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2016-1908GitHub code search for direct mentions.
Google dork
"CVE-2016-1908" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.