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Vulnerabilities

Vulnerability · CVE-2026-20136

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…

Published Apr 15, 2026 · catalog updated Sep 25, 2026 · identity services engine

Check if you run it

No confirmed exploitation is on record for CVE-2026-20136. EPSS is 0.50%. Act only if a listed version of identity services engine is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.50%
Remediation
Advisory link
Affected products
cpe cisco/identity services engine · cpe cisco/identity services engine passive identity connector

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe cisco/identity services engine3.3.0
  • cpe cisco/identity services engine passive identity connectorversion unspecified

How to fix CVE-2026-20136

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-20136. EPSS is 0.50%. Act only if a listed version of identity services engine is installed.

Which versions are affected?

Compare what you have installed with cisco/identity services engine 3.3.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-116. EPSS 0.50%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Cisco security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 15, 2026 · NIST NVD

    Detected

    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 exploi

  2. Sep 25, 2026 · NIST NVD

    Updated

    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 exploi

Sources

  • CVE.orgVulnerability recordCVE-2026-20136

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-20136

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-20136

    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 elev

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.