CVE-2026-3196
MEDIUMQemu-kvm: virtio-snd: integer overflow leading to unbounded memory allocation
Title source: cnaDescription
An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition.
References (2)
Core 2
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-3196
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2443789
https://bugzilla.redhat.com/show_bug.cgi?id=2443789
Scores
CVSS v3
5.5
EPSS
0.0010
EPSS Percentile
1.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-190
Status
published
Products (6)
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
Red Hat/Red Hat OpenShift Container Platform 4
Published
Jun 19, 2026
Tracked Since
Jun 19, 2026