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VulnerabilityPublished Updated

CVE-2026-98330: Linux kernel · wifi: cfg80211: get the wiphy out of a dying network namespace

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.0 High · fixed in caa02072b2986d4b0e7a824de05782ef7b03a0ba : patch Linux kernel soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in caa02072b2986d4b0e7a824de05782ef7b03a0ba, b949b2720688691f1e41bdbfbe3df2b6dc77c34d, 4635b1a1c1d693178a537446a6e09963f0fdae52
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Linux kernel to caa02072b2986d4b0e7a824de05782ef7b03a0ba, b949b2720688691f1e41bdbfbe3df2b6dc77c34d or 4635b1a1c1d693178a537446a6e09963f0fdae52.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 463d018323851a608eef52a9427b0585005c647f, < caa02072b2986d4b0e7a824de05782ef7b03a0ba
Fixed in
  • caa02072b2986d4b0e7a824de05782ef7b03a0ba
LinuxLinuxAffected
  • ≥ 463d018323851a608eef52a9427b0585005c647f, < b949b2720688691f1e41bdbfbe3df2b6dc77c34d
Fixed in
  • b949b2720688691f1e41bdbfbe3df2b6dc77c34d
LinuxLinuxAffected
  • ≥ 463d018323851a608eef52a9427b0585005c647f, < 4635b1a1c1d693178a537446a6e09963f0fdae52
Fixed in
  • 4635b1a1c1d693178a537446a6e09963f0fdae52
LinuxLinuxAffected
  • =2.6.32
Fixed in–

AI-suggested

A fix is available and has been applied in the Linux kernel commits identified by hashes caa02072b2986d4b0e7a824de05782ef7b03a0ba, b949b2720688691f1e41bdbfbe3df2b6dc77c34d, and 4635b1a1c1d693178a537446a6e09963f0fdae52. Users and administrators should update to a Linux kernel version containing these fixes to remediate the vulnerability.

Description

CVE-2026-98330 is a high-severity vulnerability in the Linux kernel's wifi subsystem (cfg80211). It occurs when a network namespace is destroyed and the wiphy device is moved back to the initial namespace. If moving the interface fails due to allocation issues, the wiphy can be left with an invalid network namespace pointer, leading to kernel faults. The issue has been fixed by ensuring interfaces that cannot be moved are removed so the wiphy always ends up in the initial namespace.

References

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