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Vulnerability record · CVE-2026-20130 · published 16 September 2026

CVE-2026-20130: Cisco identity services engine injection vulnerability

Cisco · Identity Services Engine

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-2026-20130 are related to improper neutralization of special elements issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-74.

10.0 CVSS 3.1 Critical EPSS 0.40% · top 68.9% CWE-74 · Injection
10.0CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References
28 Sep 2026Last modified by NVD

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-2026-20130 are related to improper neutralization of special elements issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-74.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

Track CVE-2026-20130 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-76460Cisco ISE API authentication bypass via insufficient access controlCisco Identity Services Engine contains an authentication bypass in an API endpoint caused by insufficient authentication control. An unauthenticated…KEVEPSS 14%analysed10.0CVE-2025-20337Cisco ISE API input validation flaw allows unauthenticated root RCECisco ISE and ISE-PIC fail to properly validate user-supplied input in a specific API, letting an unauthenticated remote attacker execute arbitrary c…KEVEPSS 68%analysed10.0CVE-2025-20281Cisco ISE API unauthenticated remote code executionCisco ISE and ISE-PIC fail to properly validate user-supplied input in a specific API, allowing a crafted request to reach the underlying operating s…KEVEPSS 98%analysed10.0CVE-2021-44228Apache Log4j2 JNDI lookup remote code executionApache Log4j2 versions 2.0-beta9 through 2.15.0 (excluding 2.12.2, 2.12.3, and 2.3.1) do not protect against attacker-controlled LDAP and other JNDI …KEVEPSS 100%analysed10.0CVE-2026-20192Cisco identity services engine improper access control vulnerabilityAs part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Ident…EPSS 0.46%10.0CVE-2025-20282Cisco identity services engine improper privilege management vulnerabilityA vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to upload arbitrary files to an aff…EPSS 39%10.0CVE-2011-3290Cisco identity services engine vulnerabilityCisco Identity Services Engine (ISE) before 1.0.4.MR2 has default Oracle database credentials, which allows remote attackers to modify settings or pe…EPSS 2.3%9.9CVE-2026-20234Cisco identity services engine insufficiently protected credentials vulnerabilityAs part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Ident…EPSS 0.37%

Source: NIST National Vulnerability Database (record CVE-2026-20130), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.