What is CVE-2026-48914?

CVE-2026-48914 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Heap-based Buffer Overflow. CVSS score: 6.7/10. Published 2026-06-12.

How severe is CVE-2026-48914?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Buffer overflow in Red Hat Enterprise Linux 10

CVE-2026-48914

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 subm…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (5.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H.

Affected products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9 — versions 17:10.1.0-17.el9_8.4
Red Hat Enterprise Linux For Nvidia 26
Red Hat Openshift Container Platform 4

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
secalert@redhat.com
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)

Frequently asked questions

What is CVE-2026-48914?: CVE-2026-48914 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Heap-based Buffer Overflow. CVSS score: 6.7/10. Published 2026-06-12.
How severe is CVE-2026-48914?: Medium severity. CVSS v3 base score is 6.7 out of 10.