CVE-2026-64081: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-jv9h-h3cq-mm9x
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CVSS 8.4
CWE-787
Published
Advisory Summary

CVE-2026-64081 is a HIGH (CVSS 8.4) security vulnerability vulnerability (CWE-787: Out-of-bounds Write) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product writes data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64081 at a Glance

CVE Identifier CVE-2026-64081
GHSA Identifier GHSA-jv9h-h3cq-mm9x
Severity HIGH
CVSS v3.1 Base Score 8.4
CWE Classification CWE-787: Out-of-bounds Write
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.4

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

Attack Vector Local (AV:L)
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-2026-64081

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-2026-64081, 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-787: Out-of-bounds Write, where the product writes 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: firmware: arm_ffa: Validate framework notification message layout Framework notifications carry an indirect message in the shared RX buffer. Validate the reported offset and size before using them, reject zero-length payloads, and ensure that any non-header payload starts at the UUID field rather than in the middle of the message header. Use the validated offset and size values for both kmemdup() and the UUID parsing path so malformed firmware data cannot drive an out-of-bounds read or an oversized allocation.

References

NVD — CVE-2026-64081 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64081
git.kernel.org/stable/c/3c51d99449... WEB
https://git.kernel.org/stable/c/3c51d99449dc5a01c08a7fce6071d6721f5aac83
git.kernel.org/stable/c/4a1cc9e96b... WEB
https://git.kernel.org/stable/c/4a1cc9e96b311d2609a6f963a5e35bd4ae730d97
git.kernel.org/stable/c/76eb90e2b0... WEB
https://git.kernel.org/stable/c/76eb90e2b03de147e12ab68ea8afd8ea0342df0a

Frequently Asked Questions

What is CVE-2026-64081?
CVE-2026-64081 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-787: Out-of-bounds Write.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64081?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64081?
CVE-2026-64081 has a CVSS v3.1 base score of 8.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-64081?
CVE-2026-64081 is classified under CWE-787: Out-of-bounds Write (The product writes data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-64081?
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-jv9h-h3cq-mm9x",
  "modified" : "2026-07-20T15:31:58Z",
  "published" : "2026-07-19T18:31:51Z",
  "aliases" : [ "CVE-2026-64081" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Validate framework notification message layout\n\nFramework notifications carry an indirect message in the shared RX\nbuffer. Validate the reported offset and size before using them, reject\nzero-length payloads, and ensure that any non-header payload starts at\nthe UUID field rather than in the middle of the message header.\n\nUse the validated offset and size values for both kmemdup() and the UUID\nparsing path so malformed firmware data cannot drive an out-of-bounds\nread or an oversized allocation.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/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-2026-64081"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3c51d99449dc5a01c08a7fce6071d6721f5aac83"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4a1cc9e96b311d2609a6f963a5e35bd4ae730d97"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/76eb90e2b03de147e12ab68ea8afd8ea0342df0a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:48Z"
  }
}