{"cve":"CVE-2026-48914","nvd":{"published":"2026-06-12T10:16:22.177","modified":"2026-08-31T18:17:17.337","status":"Awaiting Analysis","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H","score":6.7},"cwes":["CWE-122"],"references":["https://access.redhat.com/errata/RHSA-2026:39311","https://access.redhat.com/errata/RHSA-2026:58571","https://access.redhat.com/security/cve/CVE-2026-48914","https://bugzilla.redhat.com/show_bug.cgi?id=2488283","https://lore.kernel.org/qemu-devel/20260526154957.1741622-1-stefanha@redhat.com/"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:38:48.522727527+00:00"},"epss":{"cve":"CVE-2026-48914","score":0.00158,"percentile":0.04972,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}