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CVE-2026-5165

Virtio-win: virtio-win: memory corruption via use-after-free in virtio blk device reset

A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability. This issue could allow a local attacker to corrupt system memory, potentially leading to system instability or unexpected behavior.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Virtio-win
CVE-2026-5164

Virtio-win: virtio-win: denial of service via unvalidated descriptor count in unmap request

A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an excessive number of descriptors, leading to a buffer overrun. This can cause a system crash, resulting in a Denial of Service (DoS).

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Virtio-win
CVE-2015-3215

virtio-win: netkvm: malformed packet can cause BSOD

The NetKVM Windows Virtio driver allows remote attackers to cause a denial of service (guest crash) via a crafted length value in an IP packet, as demonstrated by a value that does not account for the size of the IP options.

CVSS 3.0 · 7.5 High EPSS 1.8% KEV · Not listed
Vendors
Redhat
Products
Rhel Extras Virtio-win