CVE•Published 2026-03-28•Modified 2026-04-08•1 article on news•7 live references•NVD data
CVE-2017-20227Varaneckas · Jad_java_decompiler
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
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Weaknesses (CWE)
Description
JAD Java Decompiler 1.5.8e-1kali1 and prior contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by supplying overly long input that exceeds buffer boundaries. Attackers can craft malicious input passed to the jad command to overflow the stack and execute a return-oriented programming chain that spawns a shell.
Timeline
Published 2026-03-28
Modified 2026-04-08
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-2017-20227Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Varaneckas Jad Java Decompiler" version:"1.5.8e-1kali1"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Jad Java Decompiler"HTTP body or banner mentions "Jad Java Decompiler" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2017-20227Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2017-20227Censys host search filtered to this CVE id.
grep.app
CVE-2017-20227Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2017-20227GitHub code search for direct mentions.
Google dork
"CVE-2017-20227" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.