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

CVE-2026-98191: wifi: wlcore: release runtime PM ref on regdomain config failure

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 05b5e297bbf46f92c80da4c2ebe67828ca0d0247, 18eb148105f1af9163f5e9758f0a7bc6ab042423, 3fbaae01bb7847d8b0124a8bbdb3af865e388d53; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 05b5e297bbf46f92c80da4c2ebe67828ca0d0247, 18eb148105f1af9163f5e9758f0a7bc6ab042423, 3fbaae01bb7847d8b0124a8bbdb3af865e388d53; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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: wifi: wlcore: release runtime PM ref on regdomain config failure wlcore_regdomain_config() gets a runtime PM reference before sending the regulatory-domain command. When wlcore_cmd_regdomain_config_locked() fails, the function queues recovery and returns without dropping that reference. Release the reference after handling the command result so both success and failure paths balance the preceding pm_runtime_resume_and_get(). The recovery worker takes a separate runtime PM reference and cannot release the reference held here.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th 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 · 0.1%

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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

    • 4.19affected
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before 85ec6c451fe681ac3135dfa43a519f1404ae63adaffected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before 3fbaae01bb7847d8b0124a8bbdb3af865e388d53affected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before c02352e2b5a241c8da89b5f5f1a0ae4d403120edaffected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before 05b5e297bbf46f92c80da4c2ebe67828ca0d0247affected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before 18eb148105f1af9163f5e9758f0a7bc6ab042423affected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before 7f1f25b2db14683ab75d0d22c00d6a75ba988b83affected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before a6bb6ad517a0d4db33a0cac9448e3ae9f4008fb4affected · git
    • fa2648a34e73fb7a17fd0a82e0335a9451d8f5c8 and later · before 8a1f3cf89ddcc700e25afe42cfad333059adcc94affected · git
    • before 4.19not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1

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-2026-98189Oct 6, 2026 · wifi: wilc1000: fix RX buffer OOB-write in wilc_wlan_handle_isr_ext()
    0Monitor
  • ← EarlierCVE-2026-98190Oct 6, 2026 · wifi: wilc1000: fix out-of-bounds read in P2P public action frames
    0Monitor
  • Later →CVE-2026-98192Oct 6, 2026 · wifi: wcn36xx: Fix potential use-after-free in TX ack timer teardown
    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 Linux05b5e297bbf46f92c80da4c2ebe67828ca0d0247Vendor (CNA)
Linux Linux18eb148105f1af9163f5e9758f0a7bc6ab042423Vendor (CNA)
Linux Linux3fbaae01bb7847d8b0124a8bbdb3af865e388d53Vendor (CNA)
Linux Linux7f1f25b2db14683ab75d0d22c00d6a75ba988b83Vendor (CNA)
Linux Linux85ec6c451fe681ac3135dfa43a519f1404ae63adVendor (CNA)
Linux Linux8a1f3cf89ddcc700e25afe42cfad333059adcc94Vendor (CNA)
Linux Linuxa6bb6ad517a0d4db33a0cac9448e3ae9f4008fb4Vendor (CNA)
Linux Linuxc02352e2b5a241c8da89b5f5f1a0ae4d403120edVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package 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. TodayOct 30, 2026+24 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