SQLite Vulnerability in Windows Handling of Unicode Characters
CVE-2025-71316

9.2CRITICAL

Key Information:

Vendor

Sqlite

Status
Sqldiff
Vendor
CVE Published:
4 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-71316?

The SQLite tool 'sqldiff.exe' has a vulnerability that arises from the improper handling of Unicode characters by the Microsoft Windows C runtime, particularly when converting to ANSI codepages. An attacker could exploit this issue by utilizing the '-L' option to load an arbitrary DLL through a crafted command line, potentially leading to the execution of unintended commands. This misinterpretation of command line file arguments as options poses a significant risk to affected systems. Patches addressing this vulnerability are expected to be released around December 26, 2025.

Affected Version(s)

sqldiff 0 < 2025-12-26

sqldiff 2025-12-26

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-71316 - Proof of Concept

References

https://sqlite.org/src/file/tool/winmain.c
patch
https://learn.microsoft.com/en-us/windows/win32/api/proce...
mitigation
https://i.blackhat.com/EU-24/Presentations/EU-24-Tsai-V2-...
exploit

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vincent55
.