MySQL 4.x before 4.0.21, and 3.x before 3.23.49, allows attackers to cause a denial of…
Priority LOW 21Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.04901 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2004:611 Released 2004-10-27 · Red Hat rating Importantmysql-server security update
- Red Hat Desktop version 3 Extras
- RHSA-2004:597 Released 2004-10-20 · Red Hat rating Importantmysql security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 Extras | Fixed | RHSA-2004:611 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2004:597 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2004:597 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2004:597 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2004:597 |
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0837
- 2026-10-03 Alias added: GHSA-8p34-xxjh-4hrg
References
Exploit 1
Patch 1
Advisory 11
Sources
- CVE-2004-0837 · CVE Program
- CVE-2004-0837 · NVD
- FIRST EPSS
- GHSA-8p34-xxjh-4hrg · GitHub Advisory Database · CC BY 4.0
- CVE-2004-0837 · Red Hat security data · CC BY 4.0
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