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Noroxi
CVE-2026-46166· NVD / CVE Program· CNA Linux

wifi: mac80211: use safe list iteration in radar detect work

Noroxi assessment

Priority: Monitor (action score 35/100)

  • 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: 0.28% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 120149fb3ebcf674832ca3cafd32bedcdb686dde, 7577a4b8a10fab45a6ee2045ea038a5adadbb585, 887ece6c23b49d02a6678e7a8d5ad213d75883ce.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 120149fb3ebcf674832ca3cafd32bedcdb686dde, 7577a4b8a10fab45a6ee2045ea038a5adadbb585, 887ece6c23b49d02a6678e7a8d5ad213d75883ce 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

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use safe list iteration in radar detect work The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
May 28, 2026
Updated
Aug 5, 2026
EPSS
0.3% · 20th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CNA vs NVD score

NVD
—
CNA · Linux
8.8
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.

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.

Follow CVE-2026-46166

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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel6.12 and later · before 6.12.88
  • linux linux kernel6.13 and later · before 6.18.30
  • linux linux kernel6.19 and later · before 7.0.7
  • linux linux kernel7.1

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

    • 6.12affected
    • bca8bc0399ac2efd56e6adbed0307e10125a556c and later · before 887ece6c23b49d02a6678e7a8d5ad213d75883ceaffected · git
    • bca8bc0399ac2efd56e6adbed0307e10125a556c and later · before 7577a4b8a10fab45a6ee2045ea038a5adadbb585affected · git
    • bca8bc0399ac2efd56e6adbed0307e10125a556c and later · before 120149fb3ebcf674832ca3cafd32bedcdb686ddeaffected · git
    • bca8bc0399ac2efd56e6adbed0307e10125a556c and later · before ac8eb3e18f41e2cc8492cc1d358bcb786c850270affected · git
    • before 6.12not affected · semver
    • 6.12.88 and later · up to and including 6.12.*not affected · semver
    • 6.18.30 and later · up to and including 6.18.*not affected · semver
    • 7.0.7 and later · up to and including 7.0.*not affected · semver
    • 7.1 and laternot affected · original_commit_for_fix

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10kernelbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64kbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debugbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debug-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debug-develbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debug-devel-matchedbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debug-modulesbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-extrabefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-develbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-devel-matchedbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-modulesbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-modules-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-64k-modules-extrabefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-abi-stablelistsbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-cross-headersbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-debugbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-debug-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-debug-develbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-debug-devel-matchedbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-debug-modulesbefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2
AlmaLinux:10kernel-debug-modules-corebefore 6.12.0-211.26.1.el10_26.12.0-211.26.1.el10_2

+96

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  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
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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 Linux120149fb3ebcf674832ca3cafd32bedcdb686ddeVendor (CNA)
Linux Linux7577a4b8a10fab45a6ee2045ea038a5adadbb585Vendor (CNA)
Linux Linux887ece6c23b49d02a6678e7a8d5ad213d75883ceVendor (CNA)
Linux Linuxac8eb3e18f41e2cc8492cc1d358bcb786c850270Vendor (CNA)
almalinux:kernel6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-core6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-core6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-core6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel-matched6.12.0-211.26.1.el10_2 · AlmaLinux:10Package registry (OSV)
debian:linux6.12.88-1 · Debian:13Package registry (OSV)
red hat:kernel-64k-debug-debuginfo0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel-matched0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debuginfo0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-devel0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-devel-matched0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-debuginfo0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-devel0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-devel-matched0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debuginfo0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debuginfo-common-aarch640:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debuginfo-common-ppc64le0:6.12.0-211.26.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
rocky linux:kernel0:6.12.0-211.26.1.el10_2 · Rocky Linux:10Package 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

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • 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
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

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

All records