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NVD / CVE Program· CNA Linux

CVE-2025-40197: media: mc: Clear minor number before put device

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 5.10.246, 5.15.195, 5.4.301; azl3 kernel 6.6.112.1-2 on Azure Linux 3.0 6.6.117.1-1.

Low priority for now. Upgrade to Linux Linux 5.10.246, 5.15.195, 5.4.301; azl3 kernel 6.6.112.1-2 on Azure Linux 3.0 6.6.117.1-1 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: media: mc: Clear minor number before put device The device minor should not be cleared after the device is released.

—No exploit Fix available
Published
Nov 12, 2025
Updated
Oct 19, 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

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

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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

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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

    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before dd156f44ea82cc249f46c519eed3b2f8983c8002affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 64dbc6f50ce92b7da203b1bcdd96a370bbc9b74daffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 5d327391f9fafeb0938be4fc538dd0bd54a0b2efaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 8f52c7f38f0f2ee2afc331e6b873acba5e9490a8affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 7bd4e5367d0940ccec4d7546bb6bd019ab2c71aaaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 7db47e737128b3585ae679b709b85f3f44cd8750affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before ac01416d477c2dc6016782635ae022f8cc634a29affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 8cfc8cec1b4da88a47c243a11f384baefd092a50affected · git
    • before 5.4.301affected · semver
    • before 5.10.246affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.158-16.1.158-1
Debian:13linuxbefore 6.12.57-16.12.57-1
Debian:14linuxbefore 6.17.6-16.17.6-1

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-2025-40195Nov 12, 2025 · mount: handle NULL values in mnt_ns_release()
    0Monitor
  • ← EarlierCVE-2025-40196Nov 12, 2025 · fs: quota: create dedicated workqueue for quota_release_work
    0Monitor
  • Later →CVE-2025-40198Nov 12, 2025 · ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
    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 Linux5.10.246Vendor (CNA)
Linux Linux5.15.195Vendor (CNA)
Linux Linux5.4.301Vendor (CNA)
Linux Linux5d327391f9fafeb0938be4fc538dd0bd54a0b2efVendor (CNA)
Linux Linux6.1.157Vendor (CNA)
Linux Linux6.12.54Vendor (CNA)
Linux Linux6.17.4Vendor (CNA)
Linux Linux6.6.113Vendor (CNA)
Linux Linux64dbc6f50ce92b7da203b1bcdd96a370bbc9b74dVendor (CNA)
Linux Linux7bd4e5367d0940ccec4d7546bb6bd019ab2c71aaVendor (CNA)
Linux Linux7db47e737128b3585ae679b709b85f3f44cd8750Vendor (CNA)
Linux Linux8cfc8cec1b4da88a47c243a11f384baefd092a50Vendor (CNA)
Linux Linux8f52c7f38f0f2ee2afc331e6b873acba5e9490a8Vendor (CNA)
Linux Linuxac01416d477c2dc6016782635ae022f8cc634a29Vendor (CNA)
Linux Linuxdd156f44ea82cc249f46c519eed3b2f8983c8002Vendor (CNA)
azl3 kernel 6.6.112.1-2 on Azure Linux 3.06.6.117.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.158-1 · 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).

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 (7 more)

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

All records