| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.8 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as problematic has been found in Apache Tomcat up to 4.0.6. This affects an unknown function of the component Catalina Package. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2003-0866. Additionally, an exploit exists. The affected component should be upgraded.
Details
A vulnerability was found in Apache Tomcat up to 4.0.6 (Application Server Software). It has been rated as problematic. Affected by this issue is an unknown part of the component Catalina Package. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:
The Catalina org.apache.catalina.connector.http package in Tomcat 4.0.x up to 4.0.3 allows remote attackers to cause a denial of service via several requests that do not follow the HTTP protocol, which causes Tomcat to reject later requests.
The bug was discovered 10/15/2003. The weakness was released 11/17/2003 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2003-0866 since 10/15/2003. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.
A public exploit has been developed in Perl. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 15232 (Debian DSA-395-1 : tomcat4 - incorrect input handling), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86790 (Apache Tomcat 4 Denial of Service Vulnerability).
Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (13429), Exploit-DB (23245), Tenable (15232), SecurityFocus (BID 8824†) and OSVDB (8772†). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 4.8
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 15232
Nessus Name: Debian DSA-395-1 : tomcat4 - incorrect input handling
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍
OpenVAS ID: 53376
OpenVAS Name: Debian Security Advisory DSA 395-1 (tomcat4)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
10/15/2003 🔍10/15/2003 🔍
10/15/2003 🔍
10/15/2003 🔍
10/15/2003 🔍
11/17/2003 🔍
11/17/2003 🔍
09/29/2004 🔍
07/20/2008 🔍
08/15/2014 🔍
07/20/2025 🔍
Sources
Vendor: apache.orgAdvisory: securityfocus.com⛔
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2003-0866 (🔍)
GCVE (CVE): GCVE-0-2003-0866
GCVE (VulDB): GCVE-100-20996
X-Force: 13429
SecurityFocus: 8824 - Apache Tomcat Non-HTTP Request Denial Of Service Vulnerability
Secunia: 30899
OSVDB: 8772 - CVE-2003-0866 - Apache - Tomcat - Denial of Service Issue
Vulnerability Center: 18839 - Apache Tomcat Catalina Package Allows Remote Denial of Service via HTTP Protocol, High
Vupen: ADV-2008-1979
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 08/15/2014 16:42Updated: 07/20/2025 22:54
Changes: 08/15/2014 16:42 (73), 08/14/2019 15:15 (9), 09/26/2024 15:23 (17), 07/20/2025 22:54 (4)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.

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