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CVE-2026-44172— MariaDB: mysql_real_escape_string() incorrectly handled big5

Quick assessment

Affected
MariaDB server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MariaDB Server是MariaDB基金会开源的一个关系型数据库系统。 MariaDB server 3.3.18版本和3.4.8版本存在安全漏洞，该漏洞源于使用mysql_real_escape_string()函数进行转义并采用big5字符集通过文本协议发送未验证的用户输入，容易受到SQL注入攻击。

CVSS 6.9 · Medium EPSS 1.01% · P62

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
MariaDB server = 3.3.18 affected
= 3.4.8 affected
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I. Basic Information for CVE-2026-44172

Vulnerability Information
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Vulnerability Title
MariaDB: mysql_real_escape_string() incorrectly handled big5
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
mariadb server SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MariaDB Server是MariaDB基金会开源的一个关系型数据库系统。 MariaDB server 3.3.18版本和3.4.8版本存在安全漏洞，该漏洞源于使用mysql_real_escape_string()函数进行转义并采用big5字符集通过文本协议发送未验证的用户输入，容易受到SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MariaDB server = 3.3.18 -

II. Public POCs for CVE-2026-44172

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III. Intelligence Information for CVE-2026-44172

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Patches & Fixes for CVE-2026-44172 (1)

Vendor Advisories for CVE-2026-44172 (1)

Same Patch Batch · MariaDB · 2026-06-12 · 8 CVEs total

CVE-2026-48165 8.0 HIGH MariaDB: unsafe usage of `wsrep_sst_receive_address` values on the joiner side
CVE-2026-48163 8.0 HIGH MariaDB: wsrep SST unsafe parameter handling on the donor side (rsync)
CVE-2026-44168 8.0 HIGH MariaDB: wsrep SST unsafe parameter handling on the donor side
CVE-2026-44171 6.3 MEDIUM MariaDB: path traversal in mbstream
CVE-2026-44170 6.3 MEDIUM MariaDB: Argument injection in CONNECT REST Xcurl on Windows via unsanitized URL
CVE-2026-44173 5.0 MEDIUM MariaDB: FILE privilege was not checked for subqueries in the FROM clause
CVE-2026-44169 4.3 MEDIUM MariaDB: Authorization bypass in role-based routine-level privilege check exposes stored r

IV. Related Vulnerabilities

Same product: server
Same vendor: MariaDB
Same weakness: CWE-89

V. Comments for CVE-2026-44172

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