Multiple critical vulnerabilities in Cisco Identity Services Engine (ISE), including SQL injection and authenticated remote code execution flaws (CVE-2026-20282, CVE-2026-20283, CVE-2026-20284), allow an authenticated attacker to execute arbitrary commands on the underlying OS. Cisco has released software updates to address these vulnerabilities and notes that workarounds are available for one of them, though specific affected and patched version numbers are not provided in this advisory summary.
Multiple vulnerabilities in Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to conduct SQL injections, modify data, or execute arbitrary commands on the underlying operating system on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Note: For CVE-2026-20282 and CVE-2026-20283, Cisco has assigned a Security Impact Rating (SIR) of High rather than Medium as the scores indicate. The reason is that it is easy to get to root from the achieved privilege level. Cisco has released software updates that address these vulnerabilities. There are workarounds that address one of these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-mult-vul-ymSsTLCc 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 . <br/>Security Impact Rating: Critical <br/>CVE: CVE-2026-20282,CVE-2026-20283,CVE-2026-20284