Is CVE-2004-0837 in the CISA KEV catalog?

No. CVE-2004-0837 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-0837?

CVE-2004-0837 has a CVSS v2 base score of 2.6 (LOW).

What is the EPSS score for CVE-2004-0837?

CVE-2004-0837 has an EPSS score of 4.90% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-0837?

Upgrade MySQL to 4.0.21 or later.

CVE & CISA-KEV Catalog

CVE-2004-0837

LOWEPSS 91th pctl

2.6

CVSS v2

NVD

Description

MySQL 4.x before 4.0.21, and 3.x before 3.23.49, allows attackers to cause a denial of service (crash or hang) via multiple threads that simultaneously alter MERGE table UNIONs.

How to fix

Remediation Available

MySQLWindows application

Affected:4.0.0 4.0.21Fixed in:4.0.21Oracle Corporation

Affected:3.20 3.23.49Fixed in:3.23.49Oracle Corporation

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.90%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

redhat.com

Exploit1

bugs.mysql.com

Vendor Advisory3

Third-Party Advisory8

Other references5

Embed a live status badge for CVE-2004-0837

Markdown

[![CVE-2004-0837](https://tridentstack.com/cve/badge/CVE-2004-0837.svg)](https://tridentstack.com/cve/CVE-2004-0837)

HTML

<a href="https://tridentstack.com/cve/CVE-2004-0837"><img src="https://tridentstack.com/cve/badge/CVE-2004-0837.svg" alt="CVE-2004-0837"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.