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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98664: iio: imu: adis16400: fix unprotected debugfs reads

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 48bb3c9b4a2fac64cb17c357418ebfbd4c9ac8ff, 50e8d70ba0743f88afd7e49f9cebd1841ee677f5, 69cc001761894c65a0eef1bb6df911b39d30d71e; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 48bb3c9b4a2fac64cb17c357418ebfbd4c9ac8ff, 50e8d70ba0743f88afd7e49f9cebd1841ee677f5, 69cc001761894c65a0eef1bb6df911b39d30d71e; 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: iio: imu: adis16400: fix unprotected debugfs reads adis16400_serial_number_fops is open coded and never calls debugfs_file_get(), so debugfs_remove_recursive() does not wait for a read in progress and unbind frees the iio_dev underneath it. Commit ae1d37a9bb4b ("iio: imu: adis16400: use DEFINE_DEBUGFS_ATTRIBUTE instead of DEFINE_SIMPLE_ATTRIBUTE") converted product_id and flash_count to DEFINE_DEBUGFS_ATTRIBUTE, which protects itself, but moved all three files to debugfs_create_file_unsafe(). serial_number prints three registers as "%.4x-%.4x-%.4x" and DEFINE_DEBUGFS_ATTRIBUTE() formats a single u64, so it cannot be converted without changing what the file returns. adis16475 and adis16550 already use debugfs_create_file() for their open coded files. Use it here too.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 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%

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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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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

    • 5.8affected
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before 48bb3c9b4a2fac64cb17c357418ebfbd4c9ac8ffaffected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before 69cc001761894c65a0eef1bb6df911b39d30d71eaffected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before d32eb2161b452a25b03f915f431bdcb9722cd92caffected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before d3078aaef8af4648f94eeafde4b7b36efd9838d1affected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before e9b4c00f775a915b759b08bfe2c5e806a8301a59affected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before 50e8d70ba0743f88afd7e49f9cebd1841ee677f5affected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before f501302ebb9e1504162351b951fe3ae331c852abaffected · git
    • ae1d37a9bb4bd8d9091a40d153143e99b115ee37 and later · before d94787287a113a1326211647d5e0deed1e9de105affected · git
    • before 5.8not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

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-2026-98662Oct 18, 2026 · iio: light: gp2ap020a00f: drain irq_work after free_irq
    0Monitor
  • ← EarlierCVE-2026-98663Oct 18, 2026 · iio: imu: adis16480: fix unprotected debugfs reads
    0Monitor
  • Later →CVE-2026-98665Oct 18, 2026 · iio: health: max30102: fix NULL dereference in interrupt handler
    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 Linux48bb3c9b4a2fac64cb17c357418ebfbd4c9ac8ffVendor (CNA)
Linux Linux50e8d70ba0743f88afd7e49f9cebd1841ee677f5Vendor (CNA)
Linux Linux69cc001761894c65a0eef1bb6df911b39d30d71eVendor (CNA)
Linux Linuxd3078aaef8af4648f94eeafde4b7b36efd9838d1Vendor (CNA)
Linux Linuxd32eb2161b452a25b03f915f431bdcb9722cd92cVendor (CNA)
Linux Linuxd94787287a113a1326211647d5e0deed1e9de105Vendor (CNA)
Linux Linuxe9b4c00f775a915b759b08bfe2c5e806a8301a59Vendor (CNA)
Linux Linuxf501302ebb9e1504162351b951fe3ae331c852abVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.113-1~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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 7, 2026+20 d
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. Exploit maturity— → none
  2. 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