CVE-2017-20227

9.3 criticalEPSS 0.7%

Critical (9.3) in varaneckas jad java decompiler. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2026-03-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

varaneckas:jad_java_decompiler

References

http://www.varaneckas.com/jad/
https://www.exploit-db.com/exploits/42255
https://www.vulncheck.com/advisories/jad-8e-1kali1-stack-based-buffer-overflow

Check your stack JSON