CVE-2016-20049

JAD 1.5.8e-1kali1 and prior contains a stack-based buffer overflow vulnerability that allows attackers to execute arbitrary code by supplying oversized input that exceeds buffer boundaries. Attackers can craft malicious input strings exceeding 8150 bytes to overflow the stack, overwrite return addresses, and execute shellcode in the application context.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - disclosure@vulncheck.com

Published

2026-03-28

Last modified

2026-03-30

Weaknesses

CWE-787

Affected products

• Jad Java Decompiler (Varaneckas)

References

• http://www.varaneckas.com/jad/
• https://www.exploit-db.com/exploits/42076
• https://www.vulncheck.com/advisories/jad-8e-1kali1-stack-based-buffer-overflow-remote-code-execution