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CVE-2026-14740— DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment

Quick assessment

Affected
HMBRAND DBI
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.

HMBRAND DBI是HMBRAND的服务器设备。 HMBRAND DBI 1.650之前版本存在缓冲区错误漏洞，该漏洞源于在删除初始SQL注释时，preparse方法导致越界读取一个字节，可能导致内存强化构建上的故障和正常构建上的非确定性换行保留。

AI Predicted 5.3 Difficulty: Hard EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 1

VendorProduct Version RangeStatus
HMBRAND DBI < 1.650 affected
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I. Basic Information for CVE-2026-14740

Vulnerability Information
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Vulnerability Title
DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment
Source: CVE Program / CVE List V5
Vulnerability Description
DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
HMBRAND DBI 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HMBRAND DBI是HMBRAND的服务器设备。 HMBRAND DBI 1.650之前版本存在缓冲区错误漏洞，该漏洞源于在删除初始SQL注释时，preparse方法导致越界读取一个字节，可能导致内存强化构建上的故障和正常构建上的非确定性换行保留。
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
HMBRAND DBI 0 ~ 1.650 -

II. Public POCs for CVE-2026-14740

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III. Intelligence Information for CVE-2026-14740

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Patches & Fixes for CVE-2026-14740 (1)

Other References for CVE-2026-14740 (1)

Same Patch Batch · HMBRAND · 2026-07-07 · 3 CVEs total

CVE-2026-14739 DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements wit
CVE-2026-14380 DBI versions before 1.650 for Perl are vulnerable to code injection via caller-influenced

IV. Related Vulnerabilities

Same product: DBI
Same vendor: HMBRAND
Same weakness: CWE-125

V. Comments for CVE-2026-14740

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