CVE-2004-2646
CVE-2004-2646 is a medium-severity vulnerability with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 4% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Published:
- Last modified:
Description
The addUser function in UserManager.java in Free Web Chat 2.0 allows remote attackers to cause a denial of service (uncaught NullPointerException) via unknown attack vectors that cause the usrName variable to be null.
Frequently asked questions
- What is CVE-2004-2646?
- The addUser function in UserManager.java in Free Web Chat 2.0 allows remote attackers to cause a denial of service (uncaught NullPointerException) via unknown attack vectors that cause the usrName variable to be null.
- How severe is CVE-2004-2646?
- CVE-2004-2646 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2004-2646 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2004-2646?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2004-2646 published?
- CVE-2004-2646 was published on 2004-12-31 and last updated on 2026-06-16.