CVEvulnerability
CVE-2026-48914
6.7 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-06-12
- Last modified
- 2026-08-31
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
- Weaknesses
- CWE-122
Description
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.
Related
Weakness · CWE (1)
- CWE-122 Heap-based Buffer Overflow weakness
References
- https://access.redhat.com/errata/RHSA-2026:39311 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:58571 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-48914 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2488283 bugzilla.redhat.com
- https://lore.kernel.org/qemu-devel/[email protected]/ lore.kernel.org