VulnerabilityPublished 6 Oct 2026Updated 19 Oct 2026

CVE-2026-98328: Linux kernel · wifi: mac80211: add HE 6 GHz capability in the scan elems len

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in db19d5414227d86cee77a000607a6710d7f36853 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Low

Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in db19d5414227d86cee77a000607a6710d7f36853, cd54bf333f5631d3630bab0a832e9ae648f73515, be7bfdea1ec9b672a80c736bd6ed932e1adebef8 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77, < db19d5414227d86cee77a000607a6710d7f36853	Fixed in db19d5414227d86cee77a000607a6710d7f36853
LinuxLinux	Affected ≥ 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77, < cd54bf333f5631d3630bab0a832e9ae648f73515	Fixed in cd54bf333f5631d3630bab0a832e9ae648f73515
LinuxLinux	Affected ≥ 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77, < be7bfdea1ec9b672a80c736bd6ed932e1adebef8	Fixed in be7bfdea1ec9b672a80c736bd6ed932e1adebef8
LinuxLinux	Affected ≥ 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77, < ad5bd0f6a0c337a80c141ea8e6c7a1d9c145be79	Fixed in ad5bd0f6a0c337a80c141ea8e6c7a1d9c145be79
LinuxLinux	Affected ≥ 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77, < 8659bd6c4c852096b6621086d1ea38eed84b454a	Fixed in 8659bd6c4c852096b6621086d1ea38eed84b454a
LinuxLinux	Affected ≥ 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77, < 9d83c08dcce808c732988a5291e3ef4f59d09edb	Fixed in 9d83c08dcce808c732988a5291e3ef4f59d09edb

AI-suggested

The issue has been fixed in specific Linux kernel commits identified by their hashes. Users should update their Linux kernel to a version including these fixes to resolve the vulnerability.

Description

A vulnerability in the Linux kernel's mac80211 wireless subsystem related to handling HE 6 GHz capability in scan element length was fixed. The issue caused probe request element building to fail when the HE 6 GHz Band Capability element was present, triggering a kernel warning during scan start.

Impact

The vulnerability could cause kernel warnings and potentially disrupt wireless scanning operations due to failed probe request element construction. There is no indication of code execution or privilege escalation. No known exploits in the wild have been reported.

Summary

CVE-2026-98328 addresses a flaw in the Linux kernel's mac80211 component where the HE 6 GHz Band Capability element was not accounted for in the scan elements length calculation. This omission could cause the construction of probe request elements to fail, leading to a WARN_ON trigger in the __ieee80211_start_scan() function. The fix involved adding the size of the HE 6 GHz capability element to the scan_ies_len to properly handle probe requests for 6 GHz bands.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Oct 2026, 11:39 UTC

Technical details

References

Community reviews

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