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Weakness (CWE) CWE-122 Heap-based Buffer Overflow 1 CWE-190 Integer Overflow or Wraparound 1

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TI-2026-34300 CVE-2026-46655

virtio-win: Integer overflow causing a heap overflow in Viosock driver

Priority HIGH 69

virtio-win provides Windows paravirtualized drivers for QEMU and KVM.

CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00175 · Published 2026-09-18 · Partial fix CWE-122

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