NVD / CVE Program· CNA Linux

CVE-2026-64178: Bluetooth: bnep: Fix UAF read of dev->name

Noroxi assessment

Priority: Monitor (action score 35/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 4907596f25b1720fa948371ac5f6c1f8da10a5bc, 5506aec795135cdd4cbf4e845929155663b25055, 59e932ded949fa6f0340bf7c6d7818f962fa4fd2.

Low priority for now. Upgrade to Linux Linux 4907596f25b1720fa948371ac5f6c1f8da10a5bc, 5506aec795135cdd4cbf4e845929155663b25055, 59e932ded949fa6f0340bf7c6d7818f962fa4fd2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.)

HighCVSS 8.8 · v3.1—No exploit Fix available

Published: Jul 19, 2026
Updated: Oct 19, 2026
EPSS: 0.2% · 15th percentile
CWE: CWE-416

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Linux: 8.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernel2.6.12.1 and later · before 5.10.258
linux linux kernel5.11 and later · before 5.15.209
linux linux kernel5.16 and later · before 6.1.175
linux linux kernel6.2 and later · before 6.6.142
linux linux kernel6.7 and later · before 6.12.92
linux linux kernel6.13 and later · before 6.18.34
linux linux kernel6.19 and later · before 7.0.11
linux linux kernel2.6.12
linux linux kernel7.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 2.6.12affected
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a75bbcb10cb21acc169b785e9804f57d97873a9caffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 4907596f25b1720fa948371ac5f6c1f8da10a5bcaffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 915a92182e2cda9cd7d2479020a44c6eda986f7caffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before fe69f634b076ae3ca81c5a5b845d9bba527036f7affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before b21805258d7e926adfd455fc820a447b90da3b82affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 5506aec795135cdd4cbf4e845929155663b25055affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before e7578529b97e5d4e439cf8f3e637c2303015338faffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 59e932ded949fa6f0340bf7c6d7818f962fa4fd2affected · git
- before 2.6.12not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.176-1	6.1.176-1
Debian:13	linux	before 6.12.94-1	6.12.94-1
Debian:14	linux	before 7.0.12-1	7.0.12-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
89Now
CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
85Now
CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
83Now

Published before and after this one in the same product

← EarlierCVE-2026-64175Jul 19, 2026 · wifi: iwlwifi: mld: stop TX during firmware restart
30Monitor
← EarlierCVE-2026-64176Jul 19, 2026 · wifi: iwlwifi: mvm: fix driver-set TX rates on old devices
32Monitor
Later →CVE-2026-64187Jul 20, 2026 · xfs: fail recovery on a committed log item with no regions
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	4907596f25b1720fa948371ac5f6c1f8da10a5bc	Vendor (CNA)
Linux Linux	5506aec795135cdd4cbf4e845929155663b25055	Vendor (CNA)
Linux Linux	59e932ded949fa6f0340bf7c6d7818f962fa4fd2	Vendor (CNA)
Linux Linux	915a92182e2cda9cd7d2479020a44c6eda986f7c	Vendor (CNA)
Linux Linux	a75bbcb10cb21acc169b785e9804f57d97873a9c	Vendor (CNA)
Linux Linux	b21805258d7e926adfd455fc820a447b90da3b82	Vendor (CNA)
Linux Linux	e7578529b97e5d4e439cf8f3e637c2303015338f	Vendor (CNA)
Linux Linux	fe69f634b076ae3ca81c5a5b845d9bba527036f7	Vendor (CNA)
debian:linux	6.1.176-1 · Debian:12	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone on the same network segment can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Adjacent
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

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

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

SSVC exploitation— → noneOct 16, 2026, 5:07 PM UTC
Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

For records you follow, these changes also arrive as notifications. →

References

git.kernel.org/stable/c/4907596f25b1720fa948371ac5f6c1f8da10a5bc

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records