CVE-2026-6250: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-4gmj-9m2m-6h5f
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CVSS 8.1
CWE-134
Published
Advisory Summary

CVE-2026-6250 is a HIGH (CVSS 8.1) security vulnerability vulnerability (CWE-134: Use of Externally-Controlled Format String) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses a function that accepts a format string as an argument, but the format string originates from an external source.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-6250 at a Glance

CVE Identifier CVE-2026-6250
GHSA Identifier GHSA-4gmj-9m2m-6h5f
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-134: Use of Externally-Controlled Format String
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

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

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

How to Fix CVE-2026-6250

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-2026-6250, 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-134: Use of Externally-Controlled Format String, where the product uses a function that accepts a format string as an argument, but the format string originates from an external source. 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

An authenticated format string vulnerability exists in the ONVIF service of Tapo C110 v2 due to improper handling of user-controlled input.  Externally controlled data is interpreted as a format string, which can be used to manipulate stack memory, including control flow data such as return addresses. A remote authenticated attacker may redirect execution flow to existing internal functions, triggering an unauthorized factory reset, leading to loss of configuration, deletion of stored credentials and service disruption.

References

NVD — CVE-2026-6250 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6250
www.tp-link.com/en/support/download... WEB
https://www.tp-link.com/en/support/download/tapo-c110/v2/#Firmware-Release-Notes
www.tp-link.com/kr/support/download... WEB
https://www.tp-link.com/kr/support/download/tapo-c110/v2/#Firmware-Release-Notes
www.tp-link.com/us/support/download... WEB
https://www.tp-link.com/us/support/download/tapo-c110/v2/#Firmware-Release-Notes
www.tp-link.com/us/support/faq/5128 WEB
https://www.tp-link.com/us/support/faq/5128

Frequently Asked Questions

What is CVE-2026-6250?
CVE-2026-6250 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-134: Use of Externally-Controlled Format String.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-6250?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-6250?
CVE-2026-6250 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2026-6250?
CVE-2026-6250 is classified under CWE-134: Use of Externally-Controlled Format String (The product uses a function that accepts a format string as an argument, but the format string originates from an external source.).
How can I check Maven dependencies for CVE-2026-6250?
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-4gmj-9m2m-6h5f",
  "modified" : "2026-06-16T15:33:42Z",
  "published" : "2026-06-12T00:31:56Z",
  "aliases" : [ "CVE-2026-6250" ],
  "details" : "An\nauthenticated format string vulnerability exists in the ONVIF service of Tapo\nC110 v2 due to improper handling of user-controlled input.  Externally controlled data is interpreted as\na format string, which can be used to manipulate stack memory, including\ncontrol flow data such as return addresses.\n\n\n\n\n\nA remote\nauthenticated attacker may redirect execution flow to existing internal\nfunctions, triggering an unauthorized factory reset, leading to loss of\nconfiguration, deletion of stored credentials and service disruption.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-6250"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/en/support/download/tapo-c110/v2/#Firmware-Release-Notes"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/kr/support/download/tapo-c110/v2/#Firmware-Release-Notes"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/us/support/download/tapo-c110/v2/#Firmware-Release-Notes"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/us/support/faq/5128"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-134" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-11T22:16:57Z"
  }
}