EUVD-2026-65597

The virtio PCI driver drivers/virtio/virtiopci.c parses a device's PCI capability list during driver initialization. In virtiopcireadcap the device-supplied capability length byte caplen read from PCI config space via pcieconfread was only checked with asserttmp.caplen == capstructsize. That asse...

CVE-2026-13216

CVE-2026-13216 is an out-of-bounds stack write in the Zephyr RTOS virtio PCI driver (drivers/virtio/virtio_pci.c). The device-supplied cap_len field, read from PCI config space, was validated only by a compiled-out assert() (gated by CONFIG_ASSERT, off by default in production). The unvalidated l...

CVE-2026-13216 Out-of-bounds stack write in Zephyr virtio PCI driver from unvalidated device-supplied capability length

The virtio PCI driver drivers/virtio/virtiopci.c parses a device's PCI capability list during driver initialization. In virtiopcireadcap the device-supplied capability length byte caplen read from PCI config space via pcieconfread was only checked with asserttmp.caplen == capstructsize. That asse...

CVE-2026-13212

The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtioisr drivers/virtio/virtiocommon.c, the device-written vq-used-ringidx.id is used directly as an index into vq-recvcbs and vq-desc, which are both allocated with exact...

EUVD-2026-64925

The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtioisr drivers/virtio/virtiocommon.c, the device-written vq-used-ringidx.id is used directly as an index into vq-recvcbs and vq-desc, which are both allocated with exact...

CVE-2026-13212 Zephyr virtio driver calls an arbitrary function pointer from an out-of-range used-ring descriptor id

The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtioisr drivers/virtio/virtiocommon.c, the device-written vq-used-ringidx.id is used directly as an index into vq-recvcbs and vq-desc, which are both allocated with exact...

CVE-2026-13212 Zephyr virtio driver calls an arbitrary function pointer from an out-of-range used-ring descriptor id

The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtioisr drivers/virtio/virtiocommon.c, the device-written vq-used-ringidx.id is used directly as an index into vq-recvcbs and vq-desc, which are both allocated with exact...

CVE-2026-13212

The Zephyr RTOS virtio driver contains an out-of-bounds read in virtio_isr() (drivers/virtio/virtio_common.c). The device-written descriptor-chain head id from the used ring is used directly as an index into recv_cbs[] and desc[] without a bounds check. A malicious or compromised virtio backend (...

PT-2026-80901

The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtio isr drivers/virtio/virtio common.c, the device-written vq-used-ringidx.id is used directly as an index into vq-recv cbs and vq-desc, which are both allocated with...