CVE-2004-0836

Buffer overflow in the mysql_real_connect function in MySQL 4.x before 4.0.21, and 3.x before 3...

10.0 HighFix available

Buffer overflow in the mysql_real_connect function in MySQL 4.x before 4.0.21, and 3.x before 3.23.49, allows remote DNS servers to cause a denial of service and possibly execute arbitrary code via a DNS response with a large address length (h_length).

Exploit likelihood

9.80%Up 5.6 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2004-0836
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2004-0836
Updated: 2026-11-02

EUVDEUVD-2004-0834 No score

Record: EUVD-2004-0834
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6f26-27c8-j6cv No score

Buffer overflow in the mysql_real_connect function in MySQL 4.x before 4.0.21, and 3.x before 3...

Record: GHSA-6f26-27c8-j6cv
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`mysql` Debian:3.0	before 3.23.49-8.8	3.23.49-8.8

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2004-0836 is a high vulnerability (CVSS 10.0) in Oracle Mysql, published October 11, 2004. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.80%, the 95th percentile. Fixed in mysql 3.23.49-8.8.

References

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