Buffer overflow in Sqlite

CVE-2025-3277

An integer overflow can be triggered in SQLite’s `concat_ws()` function. The resulting, truncated integer is then used to allocate a buffer. When SQLite then writes the resulting string to the buffer, it uses the original, untruncated size and thus a wild Heap Buffer overflow of size ~4GB can be triggered. This can result in arbitrary code execution.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (51.9th percentile) — read the EPSS interpretation.