# CVE-2026-64178 — Linux

> As of 2026-07-20, CVE-2026-64178 is a HIGH-severity vulnerability in Linux, CVSS v3.1 8.8, EPSS 0.1% (6.0th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-64178 as of 2026-07-20; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-20

## What is CVE-2026-64178?

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: Fix UAF read of dev->name bnep_add_connection() needs to keep holding the bnep_session_sem while reading dev->name (just like bnep_get_connlist() does); otherwise the bnep_session() thread can concurrently free the net_device, which can for example be triggered by a concurrent bnep_del_connection(). (This UAF is fairly uninteresting from a security perspective; calling bnep_add_connection() requires passing a capable(CAP_NET_ADMIN) check. It also requires completely tearing down a netdev during a fairly tight race window.)

Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 78 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 6.0% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-19, last modified 2026-07-20

## Is CVE-2026-64178 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Linux](https://intel.threadlinqs.com/vendors/linux): Linux

## How to fix CVE-2026-64178

No vendor patch reference has been recorded for CVE-2026-64178 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-2026-64178

No threat campaign in the Threadlinqs corpus currently references CVE-2026-64178, 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, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-07-21. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [git.kernel.org](https://git.kernel.org/stable/c/a75bbcb10cb21acc169b785e9804f57d97873a9c)
- [git.kernel.org (4907596f25b1720fa948371ac5f6c1f8da10a5bc)](https://git.kernel.org/stable/c/4907596f25b1720fa948371ac5f6c1f8da10a5bc)
- [git.kernel.org (915a92182e2cda9cd7d2479020a44c6eda986f7c)](https://git.kernel.org/stable/c/915a92182e2cda9cd7d2479020a44c6eda986f7c)
- [git.kernel.org (fe69f634b076ae3ca81c5a5b845d9bba527036f7)](https://git.kernel.org/stable/c/fe69f634b076ae3ca81c5a5b845d9bba527036f7)
- [git.kernel.org (b21805258d7e926adfd455fc820a447b90da3b82)](https://git.kernel.org/stable/c/b21805258d7e926adfd455fc820a447b90da3b82)

_Showing 5 of 8 recorded references._

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-64178
Full detection coverage and IOCs for threats exploiting CVE-2026-64178 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp