CVE-2017-20227 - CVE House
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Status published Critical CVE-2017-20227

JAD 1.5.8e-1kali1 Stack-Based Buffer Overflow

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Juan Sacco <juan.sacco@kpn.com> at KPN Red Team - http://www.kpn.com

References

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CVE-2016-20049
JAD 1.5.8e-1kali1 Stack-Based Buffer Overflow Remote Code Execution
Critical 9.3

Affected Vendor

Affected Software

JAD Java Decompiler
Vulnerable Versions:
1.5.8e

Timeline

Official Publish: March 28th, 2026
Last Modified: April 1st, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-787

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact