CVE-2026-64087: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-p924-4557-4g43
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CVSS 5.5
Published
Advisory Summary

CVE-2026-64087 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-2026-64087 at a Glance

CVE Identifier CVE-2026-64087
GHSA Identifier GHSA-p924-4557-4g43
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-2026-64087

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-2026-64087, 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: hwmon: (pmbus/adm1266) reject implausible blackbox record_count adm1266_nvmem_read_blackbox() loops over a record_count that comes straight from byte 3 of the BLACKBOX_INFO response. The destination buffer is data->dev_mem, sized for the nvmem cell's declared 2048 bytes (ADM1266_BLACKBOX_MAX_RECORDS * ADM1266_BLACKBOX_SIZE = 32 * 64). A device that reports a record_count greater than 32 -- whether due to firmware bugs, bus corruption, or a non-responsive slave returning 0xff -- would walk read_buff past the end of the dev_mem allocation on the trailing iterations. Cap record_count at ADM1266_BLACKBOX_MAX_RECORDS (introduced here) before entering the loop and return -EIO on any larger value, so a malformed BLACKBOX_INFO response cannot drive the loop out of bounds.

References

NVD — CVE-2026-64087 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64087
git.kernel.org/stable/c/0e791cd014... WEB
https://git.kernel.org/stable/c/0e791cd0140fb136083565aadfbe0f705aa260d0
git.kernel.org/stable/c/231db52a5b... WEB
https://git.kernel.org/stable/c/231db52a5b64d0a9769e298dadc148e1f79b26a6
git.kernel.org/stable/c/4afca95462... WEB
https://git.kernel.org/stable/c/4afca954622d672ea65ed961bed01cf91caa034e
git.kernel.org/stable/c/5469e1e7c4... WEB
https://git.kernel.org/stable/c/5469e1e7c411acc15fdd8262c99c3ebd9defd594
git.kernel.org/stable/c/75c862adf3... WEB
https://git.kernel.org/stable/c/75c862adf3d3caab4f49bb3530723c215376e37c
git.kernel.org/stable/c/adcb163ad7... WEB
https://git.kernel.org/stable/c/adcb163ad7cacca317872fc62bd8885e842e45e3
git.kernel.org/stable/c/c2c5609271... WEB
https://git.kernel.org/stable/c/c2c56092710fe8a893b67b5a3d7e62808d02d84d
git.kernel.org/stable/c/f85c81e93d... WEB
https://git.kernel.org/stable/c/f85c81e93dbd6915970bd5f3bffcf62633c4c54c

Frequently Asked Questions

What is CVE-2026-64087?
CVE-2026-64087 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-2026-64087?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64087?
CVE-2026-64087 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-2026-64087?
CVE-2026-64087 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-64087?
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 
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  "id" : "GHSA-p924-4557-4g43",
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  "published" : "2026-07-19T18:31:51Z",
  "aliases" : [ "CVE-2026-64087" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/adm1266) reject implausible blackbox record_count\n\nadm1266_nvmem_read_blackbox() loops over a record_count that comes\nstraight from byte 3 of the BLACKBOX_INFO response.  The destination\nbuffer is data->dev_mem, sized for the nvmem cell's declared 2048\nbytes (ADM1266_BLACKBOX_MAX_RECORDS * ADM1266_BLACKBOX_SIZE = 32 * 64).\nA device that reports a record_count greater than 32 -- whether due\nto firmware bugs, bus corruption, or a non-responsive slave returning\n0xff -- would walk read_buff past the end of the dev_mem allocation\non the trailing iterations.\n\nCap record_count at ADM1266_BLACKBOX_MAX_RECORDS (introduced here)\nbefore entering the loop and return -EIO on any larger value, so a\nmalformed BLACKBOX_INFO response cannot drive the loop out of bounds.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
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  }, {
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  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:49Z"
  }
}