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CVE-2006-1516

MEDIUM severity · CVSS 5
5CVSS MEDIUM

Summary

The check_connection function in sql_parse.cc in MySQL 4.0.x up to 4.0.26, 4.1.x up to 4.1.18, and 5.0.x up to 5.0.20 allows remote attackers to read portions of memory via a username without a trailing null byte, which causes a buffer over-read.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges required
User interaction
Confidentiality impact
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)82%

AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: http://dev.mysql.com/doc/refman/5.0/en/news-5-0-21.html ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC