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CVE-2026-44172

MariaDB: mysql_real_escape_string() incorrectly handled big5

Published: Jun 12, 2026Updated: Jun 16, 2026 Sources: CVE List NVDCWE-89
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.5%
Top 61.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

Description

MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application that was taking non-validated user input, escaping it with mysql_real_escape_string() and sending it to the database using text protocol and big5 character set was vulnerable to SQL injections, even though mysql_real_escape_string() was supposed to prevent them. This issue has been patched in versions 3.3.19 and 3.4.9.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-89

Affected Products

serverMariaDBDatabases
mariadbmariadbDatabases
mariadboss-projectUSDatabases

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/MariaDB/server/security/advisories/GHSA-pv9p-5w55-55jm
github.com
https://jira.mariadb.org/browse/CONC-819
jira.mariadb.org

Timeline

Published
Jun 12, 2026
Last Updated
Jun 16, 2026

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