A design error vulnerability has been identified in QEMU. This issue affects the virtio-gpu driver.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3038-1 advisory.

    This update for qemu fixes the following issues

    - CVE-2026-3886: QEMU calc_image_hostmem Integer Overflow Local Privilege Escalation Vulnerability     (bsc#1268061).
    - CVE-2026-48004: heap use-after-free race condition allows a DoS by an unprivileged guest user     (bsc#1270133).
    - CVE-2026-48914: qemu-kvm: Heap Buffer Overflow in virtio-blk SCSI Request Handling (bsc#1268794).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21253-1 advisory.

    Update to version 10.0.11.

    Security issues fixed:

    - CVE-2026-3886: integer overflow leading to privilege escalation due to lack of proper validation of     user-supplied       data in the virtio-gpu driver (bsc#1268061).
    - CVE-2026-48914: heap buffer overflow due to improper size validation in virtio-blk SCSI request handling       (bsc#1268794).
    - CVE-2026-48004: heap use-after-free race condition due to missing rename lock in v9fs_co_readdir_many     (bsc#1270133).

    Other updates and bugfixes:

    - Version 10.0.11:
      * Full backport list here: https://lore.kernel.org/qemu-     devel/20260627082646.D825717AB67@think4mjt.localdomain/
    - Version 10.0.10:
      * Full backport list here: https://lore.kernel.org/qemu-     devel/20260528061820.CEE521691A9@think4mjt.localdomain/
    - ppc/spapr: Skip system reset for quiesced CPUs (bsc#1268279).
    - i386/tdx: handle TDG.VP.VMCALL <GetQuote> (jsc#PED-9266).
    - i386/tdx: handle TDG.VP.VMCALL <GetTdVmCallInfo> (jsc#PED-9266).
    - update Linux headers to v6.16-rc3 (jsc#PED-9266).
    - i386/cpu: Warn about why CPUID_EXT_PDCM is not available (jsc#PED-9266).
    - i386/cpu: Move adjustment of CPUID_EXT_PDCM before feature_dependencies[] check (jsc#PED-9266).
    - [openSUSE] qemu-ga: fix service file against no-autostart (bsc#1199023).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A design error vulnerability has been identified in QEMU. This issue affects the virtio-gpu driver.
    (CVE-2026-3886)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of QEMU installed on the remote Windows host is affected by a privilege escalation vulnerability:

  - An integer overflow exists in the calc_image_hostmem function within the virtio-gpu driver due to the lack of     proper validation of user-supplied data before allocating a buffer. A local attacker who has obtained the ability     to execute low-privileged code on the target guest system can exploit this to escalate privileges and execute     arbitrary code in the context of the host system. (CVE-2026-3886)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
327329	SUSE SLED15: qemu / qemu-SLOF / qemu-accel-qtest / qemu-accel-tcg-x86 / qemu-arm / etc (SUSE-SU-2026:3038-1)	Nessus	SuSE Local Security Checks	high
326027	openSUSE 16: qemu / qemu-SLOF / qemu-accel-qtest / qemu-arm / qemu-audio-alsa / etc (openSUSE-SU-2026:21253-1)	Nessus	SuSE Local Security Checks	high
325941	Linux Distros Unpatched Vulnerability : CVE-2026-3886	Nessus	Misc.	high
320870	QEMU 8.1.x < 10.0.10 / 10.2.x < 10.2.3 / 11.0.x < 11.0.1 Privilege Escalation	Nessus	Windows	high

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CVE-2026-3886

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