Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2025-40141: Bluetooth: ISO: Fix possible UAF on iso_conn_free

Noroxi assessment

Priority: Monitor (action score 32/100)

  • 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: 0.32% (FIRST EPSS).
  • Someone on the same network segment can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 5319145a07d8bf5b0782b25cb3115825689d42bb, 80689777919f02328eb873769de4647c9dd3e371, 9950f095d6c875dbe0c9ebfcf972ec88fdf26fc8.

Low priority for now. Upgrade to Linux Linux 5319145a07d8bf5b0782b25cb3115825689d42bb, 80689777919f02328eb873769de4647c9dd3e371, 9950f095d6c875dbe0c9ebfcf972ec88fdf26fc8 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: ISO: Fix possible UAF on iso_conn_free This attempt to fix similar issue to sco_conn_free where if the conn->sk is not set to NULL may lead to UAF on iso_conn_free.

HighCVSS 8.0 · v3.1—No exploit Fix available
Published
Nov 12, 2025
Updated
Oct 19, 2026
EPSS
0.3% · 25th percentile
CWE
—

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
8.0
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.

Follow CVE-2025-40141

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

—

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

    • 6.0affected
    • ccf74f2390d60a2f9a75ef496d2564abb478f46a and later · before eba6d787ec117a5d2c60f9644e0a39c18542b6beaffected · git
    • ccf74f2390d60a2f9a75ef496d2564abb478f46a and later · before 5319145a07d8bf5b0782b25cb3115825689d42bbaffected · git
    • ccf74f2390d60a2f9a75ef496d2564abb478f46a and later · before 80689777919f02328eb873769de4647c9dd3e371affected · git
    • ccf74f2390d60a2f9a75ef496d2564abb478f46a and later · before c92ad1a155ccfa38b87bd1d998287e1c0a24248daffected · git
    • ccf74f2390d60a2f9a75ef496d2564abb478f46a and later · before 9950f095d6c875dbe0c9ebfcf972ec88fdf26fc8affected · git
    • before 6.0not affected · semver
    • 6.1.156 and later · up to and including 6.1.*not affected · semver
    • 6.6.112 and later · up to and including 6.6.*not affected · semver
    • 6.12.53 and later · up to and including 6.12.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10kernel-abi-stablelistsbefore 6.12.0-124.38.1.el10_16.12.0-124.38.1.el10_1
AlmaLinux:10kernel-docbefore 6.12.0-124.38.1.el10_16.12.0-124.38.1.el10_1
AlmaLinux:9kernelbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64kbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-corebefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debugbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-develbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-corebefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-cross-headersbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-debugbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-debug-corebefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-debug-develbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-611.30.1.el9_75.14.0-611.30.1.el9_7

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-40139Nov 12, 2025 · smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set().
    31Monitor
  • ← EarlierCVE-2025-40140Nov 12, 2025 · net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast
    35Monitor
  • Later →CVE-2025-40142Nov 12, 2025 · ALSA: pcm: Disable bottom softirqs as part of spin_lock_irq() on PREEMPT_RT
    0Monitor

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
Linux Linux5319145a07d8bf5b0782b25cb3115825689d42bbVendor (CNA)
Linux Linux80689777919f02328eb873769de4647c9dd3e371Vendor (CNA)
Linux Linux9950f095d6c875dbe0c9ebfcf972ec88fdf26fc8Vendor (CNA)
Linux Linuxc92ad1a155ccfa38b87bd1d998287e1c0a24248dVendor (CNA)
Linux Linuxeba6d787ec117a5d2c60f9644e0a39c18542b6beVendor (CNA)
almalinux:kernel5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel-matched5.14.0-611.30.1.el9_7 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.158-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.106.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)

+1

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.

No history yet (it accumulates with the daily EPSS job).

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.
  • A low-privileged account is enough.
  • 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
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (4 more)

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

All records