Varaneckas JAD Java Decompiler up to 1.5.8e-1kali1 out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k1.29

Summaryinfo

A vulnerability identified as critical has been detected in Varaneckas JAD Java Decompiler up to 1.5.8e-1kali1. This issue affects some unknown processing. The manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2017-20227. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Varaneckas JAD Java Decompiler up to 1.5.8e-1kali1 and classified as critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at exploit-db.com. The identification of this vulnerability is CVE-2017-20227 since 03/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (42255) and EUVD (EUVD-2017-18947). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/28/2026 Advisory disclosed
03/28/2026 +0 days CVE reserved
03/28/2026 +0 days VulDB entry created
03/29/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 42255
Status: Not defined

CVE: CVE-2017-20227 (🔒)
GCVE (CVE): GCVE-0-2017-20227
GCVE (VulDB): GCVE-100-354083
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/28/2026 21:47
Updated: 03/29/2026 00:36
Changes: 03/28/2026 21:47 (80), 03/29/2026 00:36 (1)
Complete: 🔍
Cache ID: 216:004:103

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