Is CVE-2004-0836 in the CISA KEV catalog?

No. CVE-2004-0836 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-0836?

CVE-2004-0836 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2004-0836?

CVE-2004-0836 has an EPSS score of 9.80% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-0836?

Upgrade MySQL to 3.23.49 or later.

CVE & CISA-KEV Catalog

CVE-2004-0836

HIGHEPSS 95th pctl

10.0

CVSS v2

NVD

Description

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).

CWE-119Buffer Overflow

How to fix

Remediation Available

MySQLWindows application

Affected:3.20 3.23.49Fixed in:3.23.49Oracle Corporation

Affected:4.0.0 4.0.21Fixed in:4.0.21Oracle 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

9.80%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Patch2

Exploit1

bugs.mysql.com

Vendor Advisory2

Third-Party Advisory6

Other references2

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.