Vulnerabilities (CVE)

Filtered by vendor Qemu Subscribe
Total 421 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2025-54567 1 Qemu 1 Qemu 2026-06-17 N/A 4.2 MEDIUM
hw/pci/pcie_sriov.c in QEMU through 10.0.3 mishandles the VF Enable bit write mask, a related issue to CVE-2024-26327.
CVE-2025-54566 1 Qemu 1 Qemu 2026-06-17 N/A 4.2 MEDIUM
hw/pci/pcie_sriov.c in QEMU through 10.0.3 has a migration state inconsistency, a related issue to CVE-2024-26327.
CVE-2024-8354 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 5.5 MEDIUM
A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c when trying to get the USB endpoint from a USB device. This flaw may allow a malicious unprivileged guest user to crash the QEMU process on the host and cause a denial of service condition.
CVE-2024-7730 1 Qemu 1 Qemu 2026-06-17 N/A 7.4 HIGH
A heap buffer overflow was found in the virtio-snd device in QEMU. When reading input audio in the virtio-snd input callback, virtio_snd_pcm_in_cb, the function did not check whether the iov can fit the data buffer. This issue can trigger an out-of-bounds write if the size of the virtio queue element is equal to virtio_snd_pcm_status, which makes the available space for audio data zero.
CVE-2024-6519 1 Qemu 1 Qemu 2026-06-17 N/A 8.2 HIGH
A use-after-free vulnerability was found in the QEMU LSI53C895A SCSI Host Bus Adapter emulation. This issue can lead to a crash or VM escape.
CVE-2024-6505 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 6.8 MEDIUM
A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.
CVE-2024-3567 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 5.5 MEDIUM
A flaw was found in QEMU. An assertion failure was present in the update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to calculate the checksum of a short-sized fragmented packet. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition.
CVE-2024-3447 2 Netapp, Qemu 2 Hci Compute Node, Qemu 2026-06-17 N/A 6.0 MEDIUM
A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
CVE-2024-26328 1 Qemu 1 Qemu 2026-06-17 N/A 6.0 MEDIUM
An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c does not set NumVFs to PCI_SRIOV_TOTAL_VF, and thus interaction with hw/nvme/ctrl.c is mishandled.
CVE-2024-26327 1 Qemu 1 Qemu 2026-06-17 N/A 5.3 MEDIUM
An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations.
CVE-2024-24474 1 Qemu 1 Qemu 2026-06-17 N/A 8.8 HIGH
QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI command when an expected non-DMA transfer length is less than the length of the available FIFO data. This occurs in esp_do_nodma in hw/scsi/esp.c because of an underflow of async_len.
CVE-2023-6693 3 Fedoraproject, Qemu, Redhat 3 Fedora, Qemu, Enterprise Linux 2026-06-17 N/A 4.9 MEDIUM
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
CVE-2023-6683 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 6.5 MEDIUM
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service.
CVE-2023-5088 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 6.4 MEDIUM
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
CVE-2023-4135 2 Fedoraproject, Qemu 2 Fedora, Qemu 2026-06-17 N/A 6.0 MEDIUM
A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed.
CVE-2023-42467 1 Qemu 1 Qemu 2026-06-17 N/A 5.5 MEDIUM
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
CVE-2023-40360 1 Qemu 1 Qemu 2026-06-17 N/A 5.5 MEDIUM
QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled.
CVE-2023-3354 3 Fedoraproject, Qemu, Redhat 4 Fedora, Qemu, Enterprise Linux and 1 more 2026-06-17 N/A 7.5 HIGH
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
CVE-2023-3301 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2026-06-17 N/A 5.6 MEDIUM
A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.
CVE-2023-3255 3 Fedoraproject, Qemu, Redhat 3 Fedora, Qemu, Enterprise Linux 2026-06-17 N/A 6.5 MEDIUM
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.