CVE intelligence

CVE-2026-20241

Vulnerability intelligence

Published Nov 4, 2026Sources checked Nov 4, 2026

5.3MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-20241 and is rated Medium severity with a CVSS score of 5.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Cisco Security Advisories guidance

Vendor revision: Nov 4, 2026

To remediate the vulnerabilities that were disclosed on November 4, 2026, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories.

CISA KEVNot listedBased on the latest collected catalog

EPSSUnavailableNo current score collected

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-20241?

A vulnerability in the authorization mechanism of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an unauthenticated, remote attacker to obtain an endpoint identity certificate.

This vulnerability is due to improper authorization checks. An attacker could exploit this vulnerability by sending a crafted request to an affected device.

A successful exploit could allow the attacker to bypass authorization to obtain an endpoint certificate.

Source: NVD