Is CVE-2026-20136 being actively exploited?

CVE-2026-20136 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-20136?

CVE-2026-20136 has a CVSS 3.1 base score of 6.0 (MEDIUM).

CVE-2026-20136

MEDIUM · CVSS 6.0EPSS 0.5%EU EUVD

A vulnerability in the CLI of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, local attacker with administrative privileges to perform a command injection attack on the underlying operating system and elevate privileges to root. This vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by providing crafted input to a specific CLI command. A successful exploit could allow the attacker to elevate their privileges to root on the underlying operating system.

Key facts

CVSS score: 6.0 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-116
EPSS score: 0.5% (41th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-22960)
Published: April 15, 2026
NVD last modified: September 25, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2026-22960 in the EU Vulnerability Database. Last updated in EUVD on April 16, 2026.

View on the EU Vulnerability Database

Affected products

cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector
cisco / identity services engine passive identity connector

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Cisco Identity Services Engine (ISE) V3.3 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-11517-2025 - active

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-cmd-inj-5WSJcYJB(Vendor Advisory)

Last updated September 27, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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