CVE-2026-64030

Kernel crash via unchecked Wi-Fi link identifier

Published Jul 19, 2026 · Updated Jul 19, 2026

Out-of-bounds access in Linux Kernel 6.15 allows attackers to crash the kernel through a connected Wi-Fi 7 access point. ieee80211_ml_epcs accepts link_id 15 from an EPCS PER_STA_PROFILE element and indexes the 15-entry sdata->link array without rejecting it. Exploitation requires an associated Wi-Fi 7 station with EPCS enabled; the resulting garbage pointer dereference causes a kernel oops or panic.

CVSS severity8.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in Linux Kernel 6.15 allows attackers to crash the kernel through a connected Wi-Fi 7 access point. ieee80211_ml_epcs accepts link_id 15 from an EPCS PER_STA_PROFILE element and indexes the 15-entry sdata->link array without rejecting it. Exploitation requires an associated Wi-Fi 7 station with EPCS enabled; the resulting garbage pointer dereference causes a kernel oops or panic.

The record

CVE
CVE-2026-64030
Published
Jul 19, 2026
Updated
Jul 19, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.15
  2. Affected versionversion=de86c5f60839dc0d771711a848b4f55ad3f90844 <2d8379834800c30602f24c71ab7c40f5fe84d200
  3. Affected versionversion=de86c5f60839dc0d771711a848b4f55ad3f90844 <863f1f02a3bd70dbd857b8ac4070292fde8cb4e2
  4. Affected versionversion=de86c5f60839dc0d771711a848b4f55ad3f90844 <f718506edd2d9c6a308ded9d13c632bf7b7d5a2c

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.15; version=de86c5f60839dc0d771711a848b4f55ad3f90844 <2d8379834800c30602f24c71ab7c40f5fe84d200; version=de86c5f60839dc0d771711a848b4f55ad3f90844 <863f1f02a3bd70dbd857b8ac4070292fde8cb4e2; version=de86c5f60839dc0d771711a848b4f55ad3f90844 <f718506edd2d9c6a308ded9d13c632bf7b7d5a2c

Published CVSS scores

7.0Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8cve.orgCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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