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CVE-2025-71316 SQLite CVE debrief

A critical vulnerability (CVSS Score: 9.2) was disclosed in SQLite 'sqldiff.exe' on 2026-06-04. The vulnerability occurs because 'sqldiff.exe' does not securely handle the conversion of Unicode characters to ANSI codepages by the Microsoft Windows C runtime. This allows an attacker to use the '-L' option to load an arbitrary DLL with a crafted command line argument string, resulting in command line file arguments being misinterpreted as command line options. The issue was fixed on or around 2025-12-26.

Vendor
SQLite
Product
sqldiff
CVSS
CRITICAL 9.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-05
Advisory published
2026-06-04
Advisory updated
2026-06-05

Who should care

Users of SQLite 'sqldiff.exe' on Microsoft Windows systems should apply the fix as soon as possible to prevent potential exploitation.

Technical summary

The vulnerability (CVE-2025-71316) arises from insecure handling of Unicode character conversion to ANSI codepages in 'sqldiff.exe'. An attacker can exploit this by crafting a command line argument string that misinterprets file arguments as options, allowing for arbitrary DLL loading.

Defensive priority

High

Recommended defensive actions

  • Apply the fix released on or around 2025-12-26 for SQLite 'sqldiff.exe'.
  • Review and update systems using 'sqldiff.exe' to ensure they are using the fixed version.

Evidence notes

Evidence from Blackhat and Microsoft documentation supports the vulnerability details.

Official resources

public