Cisco ISE Vulnerabilities & Security Advisories
28 advisories tracked · Cisco Security Advisories · 2 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Cisco advisory that VulniPulse classified as ISE, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 9 critical, 3 high, 15 medium.
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Cisco Security Advisories
Polled via the official Cisco PSIRT RSS feed. Advisory pages are fetched for new items to extract fixed software and workarounds.
Latest Cisco ISE advisories
High [CVE-2026-20352] Cisco Identity Services Engine RADIUS Denial of Service Vulnerability
A vulnerability in the RADIUS feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by sending a crafted RADIUS request directly to an affected device. A successful exploit could allow the attacker to cause the ISE node to become unavailable. For single node deployments in that condition, endpoints that have not already authenticated would be unable to access the network until the node comes back up on its own. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories. In addition, for further documentation of improvements and fixes in Cisco Identity Services Engine, see Cisco Identity Services Engine Security Hardening Release: September 2026. Affected product named by the advisory: Identity Services Engine Software.
High [CVE-2026-20247 +1] Cisco Identity Services Engine SQL Injection Vulnerabilities
Multiple vulnerabilities in Cisco Identity Services Engine (ISE) could allow a remote attacker to conduct SQL injection attacks on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories. In addition, for further documentation of improvements and fixes in Cisco Identity Services Engine, see Cisco Identity Services Engine Security Hardening Release: September 2026. Affected product named by the advisory: Identity Services Engine Software.
High [CVE-2026-20146 +6] Cisco Advance Notification for Publication of July 15, 2026, Security Advisories
On July 15, 2026, the Cisco Product Security Incident Response Team (PSIRT) published the following advisories: Cisco Security Advisory CVE ID Security Impact Rating CVSS Base Score Cisco RoomOS Security Hardening Release: July 2026 High 8.8 Cisco Identity Services Engine Path Traversal Vulnerability Medium 5.5 To fully remediate the vulnerabilities that were disclosed on July 15, 2026, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the Foundation: A Predictable, Customer-Focused Response to AI-Accelerated Vulnerability Discovery.