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NVD / CVE Program· CNA Linux

CVE-2025-40213: Bluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.19% (FIRST EPSS).
  • Someone with local access to the system 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 1c9aca1787e8395a2c59fef20e914467958969c5, 31d6c9216aa1be18ba317239738f73b0b0c7b691, 5c19daa93d9af29f1f46251b47e1ea66bcc8d679; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 1c9aca1787e8395a2c59fef20e914467958969c5, 31d6c9216aa1be18ba317239738f73b0b0c7b691, 5c19daa93d9af29f1f46251b47e1ea66bcc8d679; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes 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: MGMT: fix crash in set_mesh_sync and set_mesh_complete There is a BUG: KASAN: stack-out-of-bounds in set_mesh_sync due to memcpy from badly declared on-stack flexible array. Another crash is in set_mesh_complete() due to double list_del via mgmt_pending_valid + mgmt_pending_remove. Use DEFINE_FLEX to declare the flexible array right, and don't memcpy outside bounds. As mgmt_pending_valid removes the cmd from list, use mgmt_pending_free, and also report status on error.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Nov 24, 2025
Updated
Oct 21, 2026
EPSS
0.1% · 9th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.8
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.

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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.

—

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

    • 87a1f16f07c6c43771754075e08f45b41d237421, 6.17affected
    • 0b60eb04b8524e1b4b3f07fea0d16fda9a677d9a and later · before 31d6c9216aa1be18ba317239738f73b0b0c7b691affected · git
    • d71b98f253b079cbadc83266383f26fe7e9e103b and later · before 5c19daa93d9af29f1f46251b47e1ea66bcc8d679affected · git
    • 302a1f674c00dd5581ab8e493ef44767c5101aab and later · before 1c9aca1787e8395a2c59fef20e914467958969c5affected · git
    • 302a1f674c00dd5581ab8e493ef44767c5101aab and later · before e8785404de06a69d89dcdd1e9a0b6ea42dc6d327affected · git
    • 6.6.140 and later · before 6.6.160affected · semver
    • 6.16.10 and later · before 6.17affected · semver
    • before 6.17not affected · semver
    • 6.6.160 and later · up to and including 6.6.*not affected · semver
    • 6.17.8 and later · up to and including 6.17.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:14linuxbefore 6.17.8-16.17.8-1
openSUSE:Leap 16.0dtb-aarch64before 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-64kbbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-azurebefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-defaultbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-default-basebefore 6.12.0-160000.9.1.160000.2.66.12.0-160000.9.1.160000.2.6
openSUSE:Leap 16.0kernel-docsbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-kvmsmallbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-obs-buildbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-obs-qabefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-rtbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-sourcebefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-symsbefore 6.12.0-160000.9.16.12.0-160000.9.1
openSUSE:Leap 16.0kernel-zfcpdumpbefore 6.12.0-160000.9.16.12.0-160000.9.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_20before 1-150700.15.3.21-150700.15.3.2
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7-RT_Update_19before 1-150700.1.5.11-150700.1.5.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-64kbbefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-defaultbefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-default-basebefore 6.4.0-150700.53.78.1.150700.17.43.26.4.0-150700.53.78.1.150700.17.43.2
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-sourcebefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-zfcpdumpbefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-docsbefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-obs-buildbefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7kernel-symsbefore 6.4.0-150700.53.78.16.4.0-150700.53.78.1

+21

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-2025-40211Nov 21, 2025 · ACPI: video: Fix use-after-free in acpi_video_switch_brightness()
    0Monitor
  • ← EarlierCVE-2025-40212Nov 24, 2025 · nfsd: fix refcount leak in nfsd_set_fh_dentry()
    39Monitor
  • Later →CVE-2025-40214Dec 4, 2025 · af_unix: Initialise scc_index in unix_add_edge().
    31Monitor

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 Linux1c9aca1787e8395a2c59fef20e914467958969c5Vendor (CNA)
Linux Linux31d6c9216aa1be18ba317239738f73b0b0c7b691Vendor (CNA)
Linux Linux5c19daa93d9af29f1f46251b47e1ea66bcc8d679Vendor (CNA)
Linux Linux6.17Vendor (CNA)
Linux Linux6.6.160Vendor (CNA)
Linux Linuxe8785404de06a69d89dcdd1e9a0b6ea42dc6d327Vendor (CNA)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.17.8-1 · Debian:14Package registry (OSV)
opensuse:dtb-aarch646.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-64kb6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-azure6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-default6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-default-base6.12.0-160000.9.1.160000.2.6 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-docs6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-kvmsmall6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-obs-build6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-obs-qa6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-rt6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-source6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-syms6.12.0-160000.9.1 · openSUSE:Leap 16.0Package registry (OSV)
suse:kernel-64kb6.12.0-160000.9.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-azure6.12.0-160000.9.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)
suse:kernel-default6.12.0-160000.9.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-default-base6.12.0-160000.9.1.160000.2.6 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-docs6.12.0-160000.9.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)
suse:kernel-kvmsmall6.12.0-160000.9.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)
suse:kernel-obs-build6.12.0-160000.9.1 · SUSE:Linux Micro Extras 6.2Package registry (OSV)
suse:kernel-obs-qa6.12.0-160000.9.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)
suse:kernel-rt6.12.0-160000.9.1 · SUSE:Linux Micro 6.2Package registry (OSV)

+3

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 with local access to the system 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
Local
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:L/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. Fix✗ → ✓

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

References

Show all references (3 more)

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

All records