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Cisco Identity Services Engine RADIUS Denial of Service Vulnerability

Source: cisco / cisco-sa-ise-RADIUS-dos-wR3hYPMw — original advisory

Published: 2026-09-16 · Last updated: 2026-09-16 · Vendor severity: High

CVEs

CVECVSSCWEExploitation
CVE-2026-20352 8.6 CWE-119 Not observed in the wild

Affected Products

ProductAffected versionsFixed version
Cisco Identity Services Engine Software 3.2.0 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p1 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p2 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p3 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p4 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p5 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p6 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2.0 p7 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2 Patch 10 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2 Patch 8 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.2 Patch 9 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3.0 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 1 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 10 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 11 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 2 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 3 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 4 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 5 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 6 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 7 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 8 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.3 Patch 9 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4.0 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4 Patch 1 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4 Patch 2 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4 Patch 3 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4 Patch 4 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4 Patch 5 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.4 Patch 6 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.5.0 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.5 Patch 1 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.5 Patch 2 Not specified by vendor Not specified by vendor
Cisco Identity Services Engine Software 3.5 Patch 3 Not specified by vendor Not specified by vendor