CVE-2026-64236: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-hmfg-g42r-7r36
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CVSS 5.5
CWE-369
Published
Advisory Summary

CVE-2026-64236 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-369: Divide By Zero) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product divides a value by zero.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64236 at a Glance

CVE Identifier CVE-2026-64236
GHSA Identifier GHSA-hmfg-g42r-7r36
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-369: Divide By Zero
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-2026-64236

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-2026-64236, 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-369: Divide By Zero, where the product divides a value by zero. 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: i2c: davinci: fix division by zero on missing clock-frequency When the 'clock-frequency' property is missing from the device tree, the driver falls back to DAVINCI_I2C_DEFAULT_BUS_FREQ. However, this macro was defined in kHz (100), whereas the device tree property is expected in Hz. The probe function divided the fallback value by 1000, causing integer truncation that resulted in dev->bus_freq = 0. This triggered a deterministic division-by-zero kernel panic when calculating clock dividers later in the probe sequence. Fix this by redefining DAVINCI_I2C_DEFAULT_BUS_FREQ in Hz (100000) to match the expected device tree property unit, allowing the existing division logic to work correctly for both cases.

References

NVD — CVE-2026-64236 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64236
git.kernel.org/stable/c/030675aa54... WEB
https://git.kernel.org/stable/c/030675aa54cf757769b3db65642433d626b3ed7c
git.kernel.org/stable/c/3f43865cb6... WEB
https://git.kernel.org/stable/c/3f43865cb64dd7cb50efae1281a95585617b12a1
git.kernel.org/stable/c/9b694bc0e1... WEB
https://git.kernel.org/stable/c/9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9

Frequently Asked Questions

What is CVE-2026-64236?
CVE-2026-64236 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-369: Divide By Zero.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64236?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64236?
CVE-2026-64236 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-2026-64236?
CVE-2026-64236 is classified under CWE-369: Divide By Zero (The product divides a value by zero.).
How can I check Maven dependencies for CVE-2026-64236?
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-hmfg-g42r-7r36",
  "modified" : "2026-08-12T21:31:08Z",
  "published" : "2026-07-24T18:31:28Z",
  "aliases" : [ "CVE-2026-64236" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: davinci: fix division by zero on missing clock-frequency\n\nWhen the 'clock-frequency' property is missing from the device tree,\nthe driver falls back to DAVINCI_I2C_DEFAULT_BUS_FREQ. However, this\nmacro was defined in kHz (100), whereas the device tree property is\nexpected in Hz.\n\nThe probe function divided the fallback value by 1000, causing\ninteger truncation that resulted in dev->bus_freq = 0. This triggered\na deterministic division-by-zero kernel panic when calculating clock\ndividers later in the probe sequence.\n\nFix this by redefining DAVINCI_I2C_DEFAULT_BUS_FREQ in Hz (100000)\nto match the expected device tree property unit, allowing the existing\ndivision logic to work correctly for both cases.",
  "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-2026-64236"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/030675aa54cf757769b3db65642433d626b3ed7c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3f43865cb64dd7cb50efae1281a95585617b12a1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-369" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-24T16:16:52Z"
  }
}