Buffer overflow in Python Software Foundation Cpython

CVE-2026-3298

The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. This allowed for an out-of-bounds buffer write if data was larger than the buffer…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (29.8th percentile) — read the EPSS interpretation.