CVE-2026-76413: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-g9vq-7qf2-jm65
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CVSS 8.2
CWE-1259
Published
Advisory Summary

CVE-2026-76413 is a HIGH (CVSS 8.2) security vulnerability vulnerability (CWE-1259: Improper Restriction of Security Token Assignment) affecting Software libraries in the Maven ecosystem. The weakness occurs when the system-on-a-chip (soc) implements a security token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. however, the security tokens are improperly protected.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-76413 at a Glance

CVE Identifier CVE-2026-76413
GHSA Identifier GHSA-g9vq-7qf2-jm65
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-1259: Improper Restriction of Security Token Assignment
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.2

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

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

How to Fix CVE-2026-76413

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-2026-76413, 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-1259: Improper Restriction of Security Token Assignment, where the system-on-a-chip (soc) implements a security token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. however, the security tokens are improperly protected. 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

A vulnerability in Cisco Adaptive Security Device Manager (ASDM) single sign-on (SSO) handler for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to log in as the Cisco ASDM administrator user. This vulnerability is due to improper management of the Cisco ASDM SSO token. An attacker could exploit this vulnerability by performing session token forgery techniques. A successful exploit could allow the attacker to log in as the administrator user and, by repeating this action, keep legitimate administrators locked out of the ASDM indefinitely.

References

NVD — CVE-2026-76413 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76413
Software Security Information SECURITY
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc2-multivulns-HXgcqRG

Frequently Asked Questions

What is CVE-2026-76413?
CVE-2026-76413 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1259: Improper Restriction of Security Token Assignment.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-76413?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-76413?
CVE-2026-76413 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
What CWE is associated with CVE-2026-76413?
CVE-2026-76413 is classified under CWE-1259: Improper Restriction of Security Token Assignment (The System-On-A-Chip (SoC) implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens are improperly protected.).
How can I check Maven dependencies for CVE-2026-76413?
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-g9vq-7qf2-jm65",
  "modified" : "2026-09-16T21:32:51Z",
  "published" : "2026-09-16T21:32:51Z",
  "aliases" : [ "CVE-2026-76413" ],
  "details" : "A vulnerability in Cisco Adaptive Security Device Manager (ASDM) single sign-on (SSO) handler for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to log in as the Cisco ASDM administrator user.\n\nThis vulnerability is due to improper management of the Cisco ASDM SSO token. An attacker could exploit this vulnerability by performing session token forgery techniques. A successful exploit could allow the attacker to log in as the administrator user and, by repeating this action, keep legitimate administrators locked out of the ASDM indefinitely.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-76413"
  }, {
    "type" : "WEB",
    "url" : "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc2-multivulns-HXgcqRG"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1259" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T21:17:13Z"
  }
}