Python · Python · CVE-2026-3298
**Name of the Vulnerable Software and Affected Versions**
Python (affected versions not specified)
**Description**
On Windows systems, the `sock recvfrom into()` function within `asyncio.ProacterEventLoop` lacks a boundary check for the data buffer when the `nbytes` parameter is used. This flaw can lead to an out-of-bounds buffer write if the received network data exceeds the buffer size, potentially resulting in memory corruption, system crashes, or arbitrary code execution. Non-Windows platforms are not affected.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.