CVE-2026-3195 HIGH

CVE-2026-3195: Qemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb (incomplete fix for cve-2024-7730)

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-122
Published June 19, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 19, 2026 CVE published
June 30, 2026 Record updated