CVE-2026-64373: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-r493-vrrx-v3x2
CVSS 4.7
CWE-362
Published
Advisory Summary

CVE-2026-64373 is a MODERATE (CVSS 4.7) security vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64373 at a Glance

CVE Identifier CVE-2026-64373
GHSA Identifier GHSA-r493-vrrx-v3x2
Severity MODERATE
CVSS v3.1 Base Score 4.7
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.7

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

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
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-2026-64373

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-2026-64373, 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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: cpufreq: Fix hotplug-suspend race during reboot During system reboot, cpufreq_suspend() is called via the kernel_restart() -> device_shutdown() path. Unlike the normal system suspend path, the reboot path does not call freeze_processes(), so userspace processes and kernel threads remain active. This allows CPU hotplug operations to run concurrently with cpufreq_suspend(). The original code has no synchronization with CPU hotplug, leading to a race condition where governor_data can be freed by the hotplug path while cpufreq_suspend() is still accessing it, resulting in a null pointer dereference: Unable to handle kernel NULL pointer dereference Call Trace: do_kernel_fault+0x28/0x3c cpufreq_suspend+0xdc/0x160 device_shutdown+0x18/0x200 kernel_restart+0x40/0x80 arm64_sys_reboot+0x1b0/0x200 Fix this by adding cpus_read_lock()/cpus_read_unlock() to cpufreq_suspend() to block CPU hotplug operations while suspend is in progress. [ rjw: Changelog edits ]

References

Frequently Asked Questions

What is CVE-2026-64373?
CVE-2026-64373 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64373?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64373?
CVE-2026-64373 has a CVSS v3.1 base score of 4.7 (MODERATE) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-64373?
CVE-2026-64373 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check Maven dependencies for CVE-2026-64373?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r493-vrrx-v3x2",
  "modified" : "2026-09-08T15:31:27Z",
  "published" : "2026-07-25T12:31:33Z",
  "aliases" : [ "CVE-2026-64373" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: Fix hotplug-suspend race during reboot\n\nDuring system reboot, cpufreq_suspend() is called via the\nkernel_restart() -> device_shutdown() path. Unlike the normal system\nsuspend path, the reboot path does not call freeze_processes(), so\nuserspace processes and kernel threads remain active.\n\nThis allows CPU hotplug operations to run concurrently with\ncpufreq_suspend(). The original code has no synchronization with CPU\nhotplug, leading to a race condition where governor_data can be freed\nby the hotplug path while cpufreq_suspend() is still accessing it,\nresulting in a null pointer dereference:\n\n  Unable to handle kernel NULL pointer dereference\n  Call Trace:\n   do_kernel_fault+0x28/0x3c\n   cpufreq_suspend+0xdc/0x160\n   device_shutdown+0x18/0x200\n   kernel_restart+0x40/0x80\n   arm64_sys_reboot+0x1b0/0x200\n\nFix this by adding cpus_read_lock()/cpus_read_unlock() to\ncpufreq_suspend() to block CPU hotplug operations while suspend is in\nprogress.\n\n[ rjw: Changelog edits ]",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64373"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6d5dd354c37abaf4d60400c55c71f23ba2b33639"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6e175c00c62dca3d91b987015808b5d52e8db2b4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/73255d702c7560185fd5951aadcf7eb057c2f453"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9103078c7b3091a2fbb52af176f95982ee7dd7f8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a0106b41f9a724868d390b8b3b4ea5ca0e04ea53"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a0ef2fc89d28ca62923376c4b8ffaa57136a36be"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a9029dd55696c651ee46912afa2a166fa456bb3e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cd4524ff6567fa4458a5bec4b017105e671d393e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:20Z"
  }
}