# CVE-2026-3196 — Red Hat Enterprise Linux 10

> As of 2026-06-19, CVE-2026-3196 is a MEDIUM-severity vulnerability in Red Hat Enterprise Linux 10, CVSS v3.1 5.5. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-3196 as of 2026-06-19; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-06-19

## What is CVE-2026-3196?

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.

The record classifies CVE-2026-3196 under weakness class [CWE-190](https://intel.threadlinqs.com/cwe/CWE-190). Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on availability. 6 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 108 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 5.5 — MEDIUM (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-19

## Is CVE-2026-3196 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Red Hat](https://intel.threadlinqs.com/vendors/red-hat): Enterprise Linux 10, Enterprise Linux 6, Enterprise Linux 7, Enterprise Linux 8, Enterprise Linux 9, OpenShift Container Platform 4

## How to fix CVE-2026-3196

No vendor patch reference has been recorded for CVE-2026-3196 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-3196

No threat campaign in the Threadlinqs corpus currently references CVE-2026-3196, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories. Last verified by Threadlinqs on 2026-06-20.

**Third-party advisory**

- [access.redhat.com — vdb entry](https://access.redhat.com/security/cve/CVE-2026-3196)
- [bugzilla.redhat.com — issue tracking](https://bugzilla.redhat.com/show_bug.cgi?id=2443789)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-3196
Full detection coverage and IOCs for threats exploiting CVE-2026-3196 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp