Cisco Identity Services Engine Access Control Bypass Vulnerability

published 2025-06-04 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16893

cvss: 4.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

A vulnerability in the API of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker with administrative privileges to upload files to an affected device.

This vulnerability is due to improper validation of the file copy function. An attacker could exploit this vulnerability by sending a crafted file upload request to a specific API endpoint. A successful exploit could allow the attacker to upload arbitrary files to an affected system.

Patch / fix

fixed in 2

cisco identity_services_engine 3.1.0
cisco identity_services_engine_passive_identity_connector 3.1.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 17 mo ago (2025-06-04)

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Cisco Cisco Identity Services Engine Software

Classification

Weakness

CWE-284 Improper Access Control
CWE-434 Unrestricted Upload of File with Dangerous Type

References

sec.cloudapps.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-file-upload-P4M8vwXY
vendor-advisory

Sources

CVE List CVE-2025-20130
NVD CVE-2025-20130

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Summary