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NVD / CVE Program· CNA Linux

CVE-2026-68181: mei: bus: access mei_device under device_lock on cleanup

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 02e3a755086db847d795f2593ebc45e8ee4f1755, 441559d4c595f839b39f0ab6a4ae628427c2fd9e, 59dd34854202d9a3faaa87a85205e553fe7150e1; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 02e3a755086db847d795f2593ebc45e8ee4f1755, 441559d4c595f839b39f0ab6a4ae628427c2fd9e, 59dd34854202d9a3faaa87a85205e553fe7150e1; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: mei: bus: access mei_device under device_lock on cleanup Fix couple of problems in mei_cl_bus_dev_release(): mei_cl_flush_queues() is running without lock. bus->file_list access after mei_dev_bus_put(bus) can become a use-after-free if this was the last reference to bus. Protect queues cleanup and WARN traversal by device lock there to avoid the concurrent access problems. Move WARN traversal before mei_dev_bus_put(bus). This file uses bus variable name for mei_device, adjust code of mei_cl_bus_dev_release() to use bus variable too.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Aug 23, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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

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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

    • 2f29dce5a5ae06a7db32e4491d72269329a86eeb, 28de6ca5276a94b0589ae1bf026b89fa0eaf14c0, 6.17affected
    • 6f2a6ef86b23a30b92ad57981de537bce67bfa45 and later · before 02e3a755086db847d795f2593ebc45e8ee4f1755affected · git
    • 24f4ceeaeee7983c07590149556a0e33efe2ec90 and later · before 441559d4c595f839b39f0ab6a4ae628427c2fd9eaffected · git
    • 612c8d21ce6e37b73f3106aec7ffa35959d40261 and later · before c88c030a324c9018b77894a19b2564eb66862020affected · git
    • 35e8a426b16adbecae7a4e0e3c00fc8d0273db53 and later · before 59dd34854202d9a3faaa87a85205e553fe7150e1affected · git
    • 35e8a426b16adbecae7a4e0e3c00fc8d0273db53 and later · before 7cf79e8d682fe93777268f029668ce5e214237fdaffected · git
    • 35e8a426b16adbecae7a4e0e3c00fc8d0273db53 and later · before f112ea910e554d58b4b39a4492b7d302f0f4204faffected · git
    • 6.1.149 and later · before 6.1.184affected · semver
    • 6.6.103 and later · before 6.6.148affected · semver
    • 6.12.43 and later · before 6.12.101affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

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-2026-68177Aug 10, 2026 · tracing: Delay module ref count for "enable_event" trigger
    31Monitor
  • ← EarlierCVE-2026-68180Aug 10, 2026 · intel_th: fix MSC output device reference leak
    0Monitor
  • Later →CVE-2026-68182Aug 10, 2026 · comedi: comedi_parport: deal with premature interrupt
    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 Linux02e3a755086db847d795f2593ebc45e8ee4f1755Vendor (CNA)
Linux Linux441559d4c595f839b39f0ab6a4ae628427c2fd9eVendor (CNA)
Linux Linux59dd34854202d9a3faaa87a85205e553fe7150e1Vendor (CNA)
Linux Linux6.1.184Vendor (CNA)
Linux Linux6.12.101Vendor (CNA)
Linux Linux6.16Vendor (CNA)
Linux Linux6.17Vendor (CNA)
Linux Linux6.6.148Vendor (CNA)
Linux Linux7cf79e8d682fe93777268f029668ce5e214237fdVendor (CNA)
Linux Linuxc88c030a324c9018b77894a19b2564eb66862020Vendor (CNA)
Linux Linuxf112ea910e554d58b4b39a4492b7d302f0f4204fVendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · Debian:12Package 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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 (5 more)

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

All records