virtio-win vulnerabilities

Products

• kvm-guest-drivers-windows 1

Latest virtio-win CVEs

Newest publication first

1. CVE-2026-46655 virtio-win: Integer overflow causing a heap overflow in Viosock driver

   Published 2026-09-18

   High·CVSS 7.8 EPSS 0.18%

   virtio-win provides Windows paravirtualized drivers for QEMU and KVM. From mm210 until mm320, the Viosock driver permits a low-privilege local process to submit an IOCTL_SELECT request with attacker-controlled VIRTIO_VSOCK_SELECT.Fdss[*].fd_count values that overflow the 32-bit s...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.