CVE-2026-3196

5.5 MEDIUM 0.1% exploit odds No fix listed Memory safety

What it is

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.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
Exploit odds: 0.1% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-06-19 17:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-22 18:16 UTC Last updatedMost recent change to the record

Details

Published: 2026-06-19 17:16 UTC
Last modified: 2026-06-22 18:16 UTC
Exploit probability: 0.1% · EPSS, next 30 days
Weakness: CWE-190 · Integer overflow
Record status: Awaiting Analysis

Attack profile CVSS 3.1 · 5.5

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Download Square Reddit

References

NVD record · CVE.org record