Detections
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EulerOS 2.0 SP15 : qemu (EulerOS-SA-2026-3820)
medium Nessus Plugin ID 346769
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the qemu packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.(CVE-2026-48914)
NA(CVE-2026-3886)
A flaw was found in the virtio-crypto device of QEMU. A malicious guest operating system can exploit a missing length limit in the AKCIPHER path, leading to uncontrolled memory allocation. This can result in a denial of service (DoS) on the host system by causing the QEMU process to terminate unexpectedly.(CVE-2025-14876)
An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.(CVE-2026-0665)
A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.(CVE-2025-12464)
A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after- free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.(CVE-2025-11234)
A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).(CVE-2026-2243)
A flaw was found in the QEMU Virtio PCI Bindings (hw/virtio/virtio-pci.c). An improper release and use of the irqfd for vector 0 during the boot process leads to a guest triggerable crash via vhost_net_stop().
This flaw allows a malicious guest to crash the QEMU process on the host.(CVE-2024-4693)
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-2024-6519)
A vulnerability was found in QEMU (Virtualization Software) (the affected version unknown). It has been declared as critical.The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer.As an impact it is known to affect confidentiality, integrity, and availability.Applying the patch 4f28b87fdd24df2049626106b7c24d0180952115 is able to eliminate this problem. The bugfix is ready for download at gitlab.com.(CVE-2026-3842)
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-2024-8354)
An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest.
A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition.(CVE-2026-3196)
A flaw was found in QEMU. When reading input audio in the virtio-snd device input callback, the `virtio_snd_pcm_in_cb` function did not check whether the iov could fit the data buffer, potentially leading to a heap out-of-bounds write. This issue exists due to an incomplete fix for CVE-2024-7730.(CVE-2026-3195)
Tenable has extracted the preceding description block directly from the EulerOS qemu security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected qemu packages.See Also
Plugin Details
Severity: Medium
ID: 346769
File Name: EulerOS_SA-2026-3820.nasl
Version: 1.1
Type: Local
Family: Huawei Local Security Checks
Published: 9/17/2026
Updated: 9/17/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.6
Percentile: 96.58
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2024-8354
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:qemu-img, p-cpe:/a:huawei:euleros:qemu
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/17/2026
Vulnerability Publication Date: 5/10/2024
Reference Information
CVE: CVE-2024-4693, CVE-2024-6519, CVE-2024-8354, CVE-2025-11234, CVE-2025-12464, CVE-2025-14876, CVE-2026-0665, CVE-2026-2243, CVE-2026-3195, CVE-2026-3196, CVE-2026-3842, CVE-2026-3886, CVE-2026-48914