| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in Sun JDK 1.1/1.2 on Linux. The affected element is an unknown function of the component Type Handler. Executing a manipulation can lead to Remote Code Execution. This vulnerability appears as CVE-1999-0440. There is no available exploit. You should upgrade the affected component.
Details
A vulnerability has been found in Sun JDK 1.1/1.2 on Linux (Programming Tool Software) and classified as critical. This vulnerability affects some unknown functionality of the component Type Handler. The manipulation with an unknown input leads to a remote code execution vulnerability. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
The byte code verifier component of the Java Virtual Machine (JVM) allows remote execution through malicious web pages.
The weakness was presented 03/01/1999 by Karsten Sohr with University of Marburg as not defined advisory (Website). The advisory is shared for download at java.sun.com. This vulnerability was named CVE-1999-0440. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (2025), SecurityFocus (BID 1939†) and Vulnerability Center (SBV-597†). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
Website
- Vendor: https://www.oracle.com/sun/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Remote Code ExecutionCWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
03/01/1999 🔍03/01/1999 🔍
03/01/1999 🔍
04/05/1999 🔍
12/31/2002 🔍
06/20/2014 🔍
04/19/2026 🔍
Sources
Vendor: oracle.comAdvisory: java.sun.com⛔
Researcher: Karsten Sohr
Organization: University of Marburg
Status: Confirmed
Confirmation: 🔍
CVE: CVE-1999-0440 (🔍)
GCVE (CVE): GCVE-0-1999-0440
GCVE (VulDB): GCVE-100-14548
X-Force: 2025
SecurityFocus: 1939 - Multiple Vendor Java Virtual Machine Type Confusion Attack Vulnerability
Vulnerability Center: 597 - JVM bug allows remote execution through web pages, Medium
Entry
Created: 06/20/2014 17:30Updated: 04/19/2026 00:07
Changes: 06/20/2014 17:30 (43), 05/07/2019 17:41 (19), 04/19/2026 00:07 (18)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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