Vulnerability · CVE-2002-0493
Apache Tomcat may be started without proper security settings if errors are encountered while reading the web.xml file, which could allow attackers to bypass intended restrictions.
Published Aug 12, 2002 · catalog updated Jun 16, 2026 · Apache Tomcat may be
Last checked Nov 3, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2002-0493. EPSS is 3.80%. Act only if a listed version of Apache Tomcat may be is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Apache Tomcat may be).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-43515 · Critical
- CVE-2026-43514 · Low
- CVE-2026-43513 · High
- CVE-2026-43512 · Critical
- CVE-2026-42498 · High
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 3.80%
- Remediation
- Version ranges on file
- Affected products
- cpe apache/tomcat
Apache Tomcat may be started without proper security settings if errors are encountered while reading the web.xml file, which could allow attackers to bypass intended restrictions.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apache/tomcat<= 3.3.2
How to fix CVE-2002-0493
Upgrade
CVE-2002-0493 lists a fix boundary at 3.3.2. Compare the installed build with that boundary before you change production.
Version check
Affected <= 3.3.2
Advisory
Open the inventory_critical record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2002-0493. EPSS is 3.80%. Act only if a listed version of Apache Tomcat may be is installed.
Which versions are affected?
Compare what you have installed with <= 3.3.2. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-254. EPSS 3.80%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Aug 12, 2002 · Monitored products — critical
Detected
Apache Tomcat may be started without proper security settings if errors are encountered while reading the web.xml file, which could allow attackers to bypass intended restrictions.
Jun 16, 2026 · Monitored products — critical
Updated
Apache Tomcat may be started without proper security settings if errors are encountered while reading the web.xml file, which could allow attackers to bypass intended restrictions.
Sources
- FIRST EPSSExploitation probabilityCVE-2002-0493
30-day exploitation probability 3.80%
first.org - Monitored products — criticalVendor advisoryCVE-2002-0493
Apache Tomcat may be started without proper security settings if errors are encountered while reading the web.xml file, which could allow attackers to bypass intended restrictions.
nvd.nist.gov
References
Freshness
Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 3, 2026
- Monitored products — criticalNov 3, 2026