Cisco Identity Services Engine Path Traversal Vulnerability

Summary

CVE	CVE-2026-20148
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 Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system and read arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files on the affected system.

Risk And Classification

Primary CVSS: v3.1 4.9 MEDIUM from [email protected]

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

Problem Types: CWE-22 | CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	4.9	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`
3.1	CNA	CVSSV3_1	4.9	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`

CVSS v3.1 Breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/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 ISE Passive Identity Connector	affected 3.2.0	Not specified
CNA	Cisco	Cisco ISE Passive Identity Connector	affected 3.1.0	Not specified
CNA	Cisco	Cisco ISE Passive Identity Connector	affected 3.3.0	Not specified
CNA	Cisco	Cisco ISE Passive Identity Connector	affected 3.4.0	Not specified

References

Reference	Source	Link	Tags
sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rc...	[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 vulnerabilities that are described in this advisory.

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