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Vulnerability record · CVE-2002-0935 · published 4 October 2002

CVE-2002-0935: Apache tomcat vulnerability

Apache · Tomcat

Apache Tomcat 4.0.3, and possibly other versions before 4.1.3 beta, allows remote attackers to cause a denial of service (resource exhaustion) via a large number of requests to the server with null characters, which causes the working threads to hang.

5.0 CVSS 2.0 Medium EPSS 7.9% · top 5.5%
5.0CVSS 2.0 base score
7.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Apache Tomcat 4.0.3, and possibly other versions before 4.1.3 beta, allows remote attackers to cause a denial of service (resource exhaustion) via a large number of requests to the server with null characters, which causes the working threads to hang.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0120.html
http://online.securityfocus.com/archive/1/277940
http://www.iss.net/security_center/static/9396.php PatchVendor Advisory
http://www.osvdb.org/5051
http://www.securityfocus.com/bid/5067 PatchVendor Advisory
https://lists.apache.org/thread.html/29dc6c2b625789e70a9c4756b5a327e6547273ff8bde7e0327af48c5%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/c62b0e3a7bf23342352a5810c640a94b6db69957c5c19db507004d74%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/rb71997f506c6cc8b530dd845c084995a9878098846c7b4eacfae8db3%40%3Cdev.tomcat.apache.or
http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0120.html
http://online.securityfocus.com/archive/1/277940
http://www.iss.net/security_center/static/9396.php PatchVendor Advisory
http://www.osvdb.org/5051
http://www.securityfocus.com/bid/5067 PatchVendor Advisory
https://lists.apache.org/thread.html/29dc6c2b625789e70a9c4756b5a327e6547273ff8bde7e0327af48c5%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/c62b0e3a7bf23342352a5810c640a94b6db69957c5c19db507004d74%40%3Cdev.tomcat.apache.org
https://lists.apache.org/thread.html/rb71997f506c6cc8b530dd845c084995a9878098846c7b4eacfae8db3%40%3Cdev.tomcat.apache.or

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2002-0935), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.