CVE-2026-64030: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-2j8j-jv7c-wm9j
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CVSS 8.8
CWE-125
Published
Advisory Summary

CVE-2026-64030 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64030 at a Glance

CVE Identifier CVE-2026-64030
GHSA Identifier GHSA-2j8j-jv7c-wm9j
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-64030

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-64030, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID is 0x000f, so link_id extracted from a PRIO_ACCESS ML element PER_STA_PROFILE subelement can be 0..15. sdata->link[] has IEEE80211_MLD_MAX_NUM_LINKS (15) entries (indices 0..14), making index 15 out-of-bounds. A connected WiFi 7 AP can trigger this by sending an EPCS Enable Response action frame with a PER_STA_PROFILE subelement where link_id = 15. The unsolicited-notification path (dialog_token = 0) is reachable any time EPCS is already enabled, without any prior client request. sdata->link[15] reads into the first word of sdata->activate_links_work (a wiphy_work whose embedded list_head is non-NULL after INIT_LIST_HEAD), so the NULL check on the result does not catch the invalid access. The garbage pointer is then passed to ieee80211_sta_wmm_params(), which dereferences link->sdata and crashes the kernel. The same class of bug was fixed for ieee80211_ml_reconfiguration() by commit 162d331d833d ("wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration").

References

NVD — CVE-2026-64030 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64030
git.kernel.org/stable/c/2d83798348... WEB
https://git.kernel.org/stable/c/2d8379834800c30602f24c71ab7c40f5fe84d200
git.kernel.org/stable/c/863f1f02a3... WEB
https://git.kernel.org/stable/c/863f1f02a3bd70dbd857b8ac4070292fde8cb4e2
git.kernel.org/stable/c/f718506edd... WEB
https://git.kernel.org/stable/c/f718506edd2d9c6a308ded9d13c632bf7b7d5a2c

Frequently Asked Questions

What is CVE-2026-64030?
CVE-2026-64030 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64030?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64030?
CVE-2026-64030 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-64030?
CVE-2026-64030 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-64030?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-2j8j-jv7c-wm9j",
  "modified" : "2026-07-20T15:31:56Z",
  "published" : "2026-07-19T18:31:49Z",
  "aliases" : [ "CVE-2026-64030" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: bounds-check link_id in ieee80211_ml_epcs\n\nIEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID is 0x000f, so link_id extracted\nfrom a PRIO_ACCESS ML element PER_STA_PROFILE subelement can be 0..15.\nsdata->link[] has IEEE80211_MLD_MAX_NUM_LINKS (15) entries (indices 0..14),\nmaking index 15 out-of-bounds.\n\nA connected WiFi 7 AP can trigger this by sending an EPCS Enable Response\naction frame with a PER_STA_PROFILE subelement where link_id = 15.  The\nunsolicited-notification path (dialog_token = 0) is reachable any time\nEPCS is already enabled, without any prior client request.\n\nsdata->link[15] reads into the first word of sdata->activate_links_work\n(a wiphy_work whose embedded list_head is non-NULL after INIT_LIST_HEAD),\nso the NULL check on the result does not catch the invalid access.  The\ngarbage pointer is then passed to ieee80211_sta_wmm_params(), which\ndereferences link->sdata and crashes the kernel.\n\nThe same class of bug was fixed for ieee80211_ml_reconfiguration() by\ncommit 162d331d833d (\"wifi: mac80211: bounds-check link_id in\nieee80211_ml_reconfiguration\").",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64030"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2d8379834800c30602f24c71ab7c40f5fe84d200"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/863f1f02a3bd70dbd857b8ac4070292fde8cb4e2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f718506edd2d9c6a308ded9d13c632bf7b7d5a2c"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:43Z"
  }
}