Heap Overflow in SQLite 3.50.1 Enables Local DoS and Potential RCE on Unpatched Windows Server
What Happened — A heap‑overflow vulnerability (CVE‑2025‑6965) in SQLite < 3.50.2 can be triggered on Windows by abusing the winsqlite3.dll library. The flaw allows a local attacker to corrupt memory, crash services and, under certain conditions, achieve remote code execution that may compromise Active Directory, Group Policy, Certificate Services, and Azure AD Connect.
Why It Matters for TPRM —
- Critical Windows Server components used by many third‑party providers are at risk.
- A successful exploit can lead to domain‑controller takeover, exposing all downstream customers.
- The vulnerability is publicly disclosed with a PoC, increasing the likelihood of exploitation before patch adoption.
Who Is Affected — Enterprises across all sectors that run unpatched Windows Server 2022/2025 and embed SQLite (e.g., finance, healthcare, government, SaaS providers).
Recommended Actions —
- Deploy the post‑July 2025 Windows cumulative update on all servers.
- Upgrade SQLite to 3.50.2 or later on any application that ships
winsqlite3.dll. - Conduct an inventory of systems using SQLite and validate patch status.
- Monitor for anomalous service crashes or unexpected
winsqlite3.dllactivity.
Technical Notes — CVE‑2025‑6965, CVSS 7.2 (High). Attack vector: local memory‑corruption via excessive aggregate functions. Affected components: winsqlite3.dll on Windows Server, impacting AD cache, Group Policy, Certificate Services, Azure AD Connect. Fixes: Windows cumulative updates, SQLite 3.50.2+ binary. Source: Exploit‑DB 52499