Medium severity · published Sep 16, 2026
CVE-2026-20287
Cisco Identity Services Engine Hardening Release - Improper Privlege Management Vulnerabilities
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-20287 are related to improper privilege managment issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-269.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CI
Cisco ISE Passive Identity Connector · Cisco
3.2.0; 3.1.0; 3.3.0; 3.4.0; 3.5.0 · source: vendor
CI
Cisco Identity Services Engine Software · Cisco
3.1.0; 3.1.0 p1; 3.1.0 p3; 3.1.0 p2; 3.2.0; 3.1.0 p4; +34 more · source: vendor
Affected product
CI
Cisco Identity Services Engine Software
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20287
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20287
sec.cloudapps.cisco.com
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ise-XU5EwX5T
More from Cisco Identity Services Engine Software
10.0
CVE-2026-76460
Cisco Identity Services Engine Authentication Bypass Vulnerability
10.0
CVE-2025-20337
Cisco ISE API Unauthenticated Remote Code Execution Vulnerability
10.0
CVE-2025-20281
Cisco ISE API Unauthenticated Remote Code Execution Vulnerability
10.0
CVE-2026-76423
Cisco ISE API Authentication Bypass Vulnerability
10.0
CVE-2026-20130
Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities
