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NVD / CVE Program· CNA Linux

CVE-2026-68180: intel_th: fix MSC output device reference leak

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 12ad4fad748e6e563ff4480f03b89134a41b5c37, 141641a70ed337e54487f766ede745fc2ce44c42, 26e27b8dcef1e4df6f30d8f25b3304a506d482b3; 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 12ad4fad748e6e563ff4480f03b89134a41b5c37, 141641a70ed337e54487f766ede745fc2ce44c42, 26e27b8dcef1e4df6f30d8f25b3304a506d482b3; 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: intel_th: fix MSC output device reference leak intel_th_output_open() looks up the output device with bus_find_device_by_devt(), which returns the device with a reference that must be dropped after use. commit 95fc36a234da ("intel_th: fix device leak on output open()") attempted to drop the reference from intel_th_output_release(). However, a successful open replaces file->f_op with the output driver file operations before returning, so close runs the output driver release callback instead. For MSC outputs, close runs intel_th_msc_release(), which only removes the per-file iterator and does not drop the device reference taken by intel_th_output_open(). Consequently, every successful MSC output open leaks one device reference. Drop the device reference from intel_th_msc_release(), which is the release path actually used for MSC output files. Remove the now-unused intel_th_output_release() callback from intel_th_output_fops.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Nov 6, 2026
EPSS
0.2% · 12th 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%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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  • 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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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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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

    • 6.19affected
    • af4b9467296b9a16ebc008147238070236982b6d and later · before 12ad4fad748e6e563ff4480f03b89134a41b5c37affected · git
    • 64015cbf06e8bb75b81ae95b997e847b55280f7f and later · before df55842fddbcdb80e6dd16680439c0f780ed592eaffected · git
    • b71e64ef7ff9443835d1333e3e80ab1e49e5209f and later · before 141641a70ed337e54487f766ede745fc2ce44c42affected · git
    • bf7785434b5d05d940d936b78925080950bd54dd and later · before ddcf2064d7ec5a8c9afa7cb74442320e443502bcaffected · git
    • 0fca16c5591534cc1fec8b6181277ee3a3d0f26c and later · before 26e27b8dcef1e4df6f30d8f25b3304a506d482b3affected · git
    • f9b059bda4276f2bb72cb98ec7875a747f042ea2 and later · before caba30eb8bd321c465ecfc7d850ee85f5b353496affected · git
    • 95fc36a234da24bbc5f476f8104a5a15f99ed3e3 and later · before c3a28f9cb82425fe0835048ed3677f321e780691affected · git
    • 95fc36a234da24bbc5f476f8104a5a15f99ed3e3 and later · before 761b785a0cfbce43761227bc42a7f984f31f8921affected · git
    • 5.10.249 and later · before 5.10.265affected · 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

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-2026-68178Aug 10, 2026 · misc: nsm: pin the module while the device is open
    31Monitor
  • ← EarlierCVE-2026-68179Aug 10, 2026 · misc: nsm: only unlock nsm_dev on post-lock error paths
    33Monitor
  • Later →CVE-2026-68184Aug 10, 2026 · cdrom: fix stack out-of-bounds read in CDROMVOLCTRL
    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 Linux12ad4fad748e6e563ff4480f03b89134a41b5c37Vendor (CNA)
Linux Linux141641a70ed337e54487f766ede745fc2ce44c42Vendor (CNA)
Linux Linux26e27b8dcef1e4df6f30d8f25b3304a506d482b3Vendor (CNA)
Linux Linux5.10.265Vendor (CNA)
Linux Linux5.15.216Vendor (CNA)
Linux Linux6.1.183Vendor (CNA)
Linux Linux6.12.101Vendor (CNA)
Linux Linux6.18.42Vendor (CNA)
Linux Linux6.6.148Vendor (CNA)
Linux Linux761b785a0cfbce43761227bc42a7f984f31f8921Vendor (CNA)
Linux Linuxc3a28f9cb82425fe0835048ed3677f321e780691Vendor (CNA)
Linux Linuxcaba30eb8bd321c465ecfc7d850ee85f5b353496Vendor (CNA)
Linux Linuxddcf2064d7ec5a8c9afa7cb74442320e443502bcVendor (CNA)
Linux Linuxdf55842fddbcdb80e6dd16680439c0f780ed592eVendor (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.

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

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

References

All records