CVE-2016-20049

JAD 1.5.8e-1kali1 Stack-Based Buffer Overflow Remote Code Execution

CVSS 9.3 CRITICALEPSS 0.7%CWE-787

Vexday Risk Score

48Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 9.3EPSS 0.7%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

28 Mar 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

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

Affected products

Varaneckas · JAD Java Decompiler

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/42076unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

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