CVE-2016-20049

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 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.

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/42076
https://www.vulncheck.com/advisories/jad-8e-1kali1-stack-based-buffer-overflow-remote-code-execution

Check your stack JSON