Cisco Identity Services Engine Authenticated Privilege Escalation Vulnerability

Summary

CVE	CVE-2026-20136
State	PUBLISHED
Assigner	cisco
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-04-15 17:17:02 UTC
Updated	2026-04-15 17:17:02 UTC
Description	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.

Risk And Classification

Primary CVSS: v3.1 6 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-116 | CWE-116 Improper Encoding or Escaping of Output

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	6	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`
3.1	CNA	CVSSV3_1	6	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`

CVSS v3.1 Breakdown

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p1	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p3	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p2	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p4	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p5	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p1	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p6	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p2	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p7	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3.0	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p3	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p4	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p8	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p5	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p6	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p9	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 2	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 1	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 3	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.4.0	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2.0 p7	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 4	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.4 Patch 1	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.1.0 p10	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 5	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 6	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.4 Patch 2	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 7	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.4 Patch 3	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.5.0	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.4 Patch 4	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 8	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2 Patch 8	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.5 Patch 1	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 9	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.2 Patch 9	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.4 Patch 5	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.5 Patch 2	Not specified
CNA	Cisco	Cisco Identity Services Engine Software	affected 3.3 Patch 10	Not specified

References

Reference	Source	Link	Tags
sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-cm...	[email protected]	sec.cloudapps.cisco.com
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Additional Advisory Data

Exploits

CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

There are currently no legacy QID mappings associated with this CVE.