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CVE-2026-98425

wifi: mac80211: don't warn when an IBSS has no channel to scan

CVSS score

1.9

EPSS probability

%0.2

Risk score

0.0

Published

5 d ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Linux Kernel Update for CVE-2026-98425

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

An issue has been addressed in the Linux kernel mac80211 subsystem where a warning occurred when an IBSS had no channel to scan due to regulatory domain changes.

Why does it matter?

This kernel stability issue triggers unnecessary warnings during regulatory domain changes while IBSS operations are ongoing.

What should be done?

  • Follow vendor advisories and updates
  • Apply the source code updates to the kernel
Chain of evidence and sources2 verified claims

ieee80211_request_ibss_scan() fonksiyonu, regülasyon izin verilen kanal bırakmadığında uyarı üretmektedir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd

Regdomain, IBSS çalışırken değişebilir ve 60 saniyelik ek süre boyunca çalışmaya devam edebilir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd
Show the technical text from the sources

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't warn when an IBSS has no channel to scan ieee80211_request_ibss_scan() warns when regulatory leaves no allowed channel, but that can happen as the regdomain can change while IBSS is operating, and it can continue to operate briefly during the 60s grace period until it's shut down. Just remove the warning in this case.

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

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-98425 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1linuxLinux View
2linuxLinux View
Total affected vendors: 1|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
1.9CVSS 3.x—CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:LMicrosoft MSRC

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

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reference

Yama veya çözüm referansı

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-98425 is associated with the following CWEs:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CWE-20: Improper Input Validation

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-98425 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsHigh
UserGerekmiyor

Official Sources and Advisories

https://git.kernel.org/stable/c/bb91c15953705445778c170a2523f12351c4d928vendor-advisoryhttps://git.kernel.org/stable/c/5f139e17f5bdba6b68177dd8afe13fa4549dfc5fvendor-advisoryhttps://git.kernel.org/stable/c/23d51c0bc18f21d957756ba4650520bb3bc726b2vendor-advisoryhttps://git.kernel.org/stable/c/a7491b7efbd9136b120a12ed72af9c12121dd134vendor-advisoryhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgradepatch

CVSS Vector Radar Chart

1.9 / 10
Attack VectorLocalComplexityHighPrivilegesHighUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredHigh privileges
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)Low

Yama doğrulandı

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

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