CVE-2008-3963

CVE-2008-3963 is a medium-severity vulnerability in Mysql with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-134.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.0)
• EPSS exploit prediction: 6% (93rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-134
• Affected product: Mysql
• Published: 2008-09-11
• Last modified: 2026-06-16

Description

MySQL 5.0 before 5.0.66, 5.1 before 5.1.26, and 6.0 before 6.0.6 does not properly handle a b'' (b single-quote single-quote) token, aka an empty bit-string literal, which allows remote attackers to cause a denial of service (daemon crash) by using this token in a SQL statement.

Frequently asked questions

What is CVE-2008-3963?

MySQL 5.0 before 5.0.66, 5.1 before 5.1.26, and 6.0 before 6.0.6 does not properly handle a b'' (b single-quote single-quote) token, aka an empty bit-string literal, which allows remote attackers to cause a denial of service (daemon crash) by using this token in a SQL statement.

How severe is CVE-2008-3963?

CVE-2008-3963 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2008-3963 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-3963?

CVE-2008-3963 primarily affects Mysql. In total, 64 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-3963?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2008-3963 published?

CVE-2008-3963 was published on 2008-09-11 and last updated on 2026-06-16.

References

• http://bugs.mysql.com/bug.php?id=35658
• http://dev.mysql.com/doc/refman/5.0/en/releasenotes-es-5-0-66.html
• http://dev.mysql.com/doc/refman/5.1/en/news-5-1-26.html
• http://dev.mysql.com/doc/refman/6.0/en/news-6-0-6.html
• http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
• http://secunia.com/advisories/31769
• http://secunia.com/advisories/32759
• http://secunia.com/advisories/32769
• http://secunia.com/advisories/34907
• http://secunia.com/advisories/36566
• http://www.debian.org/security/2009/dsa-1783
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:094
• http://www.openwall.com/lists/oss-security/2008/09/09/4
• http://www.openwall.com/lists/oss-security/2008/09/09/7
• http://www.redhat.com/support/errata/RHSA-2009-1067.html
• http://www.redhat.com/support/errata/RHSA-2009-1289.html
• http://www.securitytracker.com/id?1020858
• http://www.ubuntu.com/usn/USN-1397-1
• http://www.ubuntu.com/usn/USN-671-1
• http://www.vupen.com/english/advisories/2008/2554
• https://bugs.gentoo.org/237166
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45042
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10521

Affected products (64)

• cpe:2.3:a:mysql:mysql:5.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.5.0.21:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.15:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.16:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.17:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.20:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.22.1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.24:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.30:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.36:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.44:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.54:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.56:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.0.60:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:mysql:mysql:5.1.23:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.0:alpha:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.23:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.25:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.26:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.30:sp1:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.32:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.33:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.38:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.41:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.42:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.45:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.50:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.51:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.0.52:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:mysql:5.1.2:*:*:*:*:*:*:*

More vulnerabilities in Mysql

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