CVE-2026-64174: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-rrg8-qcw5-j3cm
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CVSS 5.5
Published
Advisory Summary

CVE-2026-64174 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64174 at a Glance

CVE Identifier CVE-2026-64174
GHSA Identifier GHSA-rrg8-qcw5-j3cm
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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

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

How to Fix CVE-2026-64174

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-2026-64174, 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 General Security Weakness. 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: cfg80211: advance loop vars in cfg80211_merge_profile() cfg80211_merge_profile() reassembles a Multi-BSSID non-transmitted BSS profile that has been split across multiple consecutive MBSSID elements. Its while-loop calls cfg80211_get_profile_continuation(ie, ielen, mbssid_elem, sub_elem) but never advances mbssid_elem or sub_elem inside the body. Each iteration therefore searches for a continuation that follows the same fixed pair; the helper returns the same next_mbssid; and the same next_sub bytes are memcpy()'d into merged_ie at a growing offset until the buffer fills. Advance both mbssid_elem and sub_elem to the just-consumed continuation so the next call to cfg80211_get_profile_continuation() searches for a further continuation beyond it (or returns NULL when none exists). A specially-crafted malicious beacon can take advantage of this bug to cause the kernel to spend an excessive amount of time in cfg80211_merge_profile (up to as much as 2ms per beacon received), which could theoretically be abused in some way.

References

NVD — CVE-2026-64174 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64174
git.kernel.org/stable/c/1343a480f8... WEB
https://git.kernel.org/stable/c/1343a480f84b80c1249133a90ef87f8751d65cbb
git.kernel.org/stable/c/1ced0f5a85... WEB
https://git.kernel.org/stable/c/1ced0f5a851f9cae274545a42a06c459b7fd8881
git.kernel.org/stable/c/5817e1e520... WEB
https://git.kernel.org/stable/c/5817e1e5205498a5df66eba2b34e817f4210fd0f
git.kernel.org/stable/c/67915715fd... WEB
https://git.kernel.org/stable/c/67915715fd3874057457363c87c63e18829527df
git.kernel.org/stable/c/6cfae49144... WEB
https://git.kernel.org/stable/c/6cfae4914439878b8acb35c7e3b40096eeb2ad9c
git.kernel.org/stable/c/7666dbb1ba... WEB
https://git.kernel.org/stable/c/7666dbb1bacc4ba522b96740cba7283d243d16e1
git.kernel.org/stable/c/c0bc4c8bd5... WEB
https://git.kernel.org/stable/c/c0bc4c8bd556cbe036a5b9ed333c0aab9aadfcb8
git.kernel.org/stable/c/cedbb60849... WEB
https://git.kernel.org/stable/c/cedbb608494ba1e7a5c6c56b7f1d3fd470094f28

Frequently Asked Questions

What is CVE-2026-64174?
CVE-2026-64174 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64174?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64174?
CVE-2026-64174 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-64174?
CVE-2026-64174 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-64174?
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-rrg8-qcw5-j3cm",
  "modified" : "2026-08-13T15:34:18Z",
  "published" : "2026-07-19T18:31:54Z",
  "aliases" : [ "CVE-2026-64174" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: advance loop vars in cfg80211_merge_profile()\n\ncfg80211_merge_profile() reassembles a Multi-BSSID non-transmitted BSS\nprofile that has been split across multiple consecutive MBSSID elements.\nIts while-loop calls\n\n\tcfg80211_get_profile_continuation(ie, ielen, mbssid_elem, sub_elem)\n\nbut never advances mbssid_elem or sub_elem inside the body.  Each\niteration therefore searches for a continuation that follows the same\nfixed pair; the helper returns the same next_mbssid; and the same\nnext_sub bytes are memcpy()'d into merged_ie at a growing offset until\nthe buffer fills.\n\nAdvance both mbssid_elem and sub_elem to the just-consumed continuation\nso the next call to cfg80211_get_profile_continuation() searches for a\nfurther continuation beyond it (or returns NULL when none exists).\n\nA specially-crafted malicious beacon can take advantage of this bug\nto cause the kernel to spend an excessive amount of time in\ncfg80211_merge_profile (up to as much as 2ms per beacon received),\nwhich could theoretically be abused in some way.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64174"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1343a480f84b80c1249133a90ef87f8751d65cbb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1ced0f5a851f9cae274545a42a06c459b7fd8881"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5817e1e5205498a5df66eba2b34e817f4210fd0f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/67915715fd3874057457363c87c63e18829527df"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7666dbb1bacc4ba522b96740cba7283d243d16e1"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cedbb608494ba1e7a5c6c56b7f1d3fd470094f28"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:59Z"
  }
}