CVE-2026-3298 - Out-of-bounds write in Windows asyncio.ProacterEventLoop.sock_recvfrom_into() when using nbytes

CVE-2026-3298 - Out-of-bounds write in Windows asyncio.ProacterEventLoop.sock_recvfrom_into() when using nbytes

https://cvefeed.io/rssfeed/latest.atom / Tue, 04/21/2026 - 19:54
CVE ID :CVE-2026-3298
Published : April 21, 2026, 3:16 p.m. | 55 minutes ago
Description :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 size. Non-Windows platforms are not affected.
Severity: 8.8 | HIGH
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