8.6

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerCisco
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Produkt Cisco Identity Services Engine Software
Default Statusunknown
Version 3.2.0
Status affected
Version 3.2.0 p1
Status affected
Version 3.2.0 p2
Status affected
Version 3.3.0
Status affected
Version 3.2.0 p3
Status affected
Version 3.2.0 p4
Status affected
Version 3.2.0 p5
Status affected
Version 3.2.0 p6
Status affected
Version 3.3 Patch 2
Status affected
Version 3.3 Patch 1
Status affected
Version 3.3 Patch 3
Status affected
Version 3.4.0
Status affected
Version 3.2.0 p7
Status affected
Version 3.3 Patch 4
Status affected
Version 3.4 Patch 1
Status affected
Version 3.3 Patch 5
Status affected
Version 3.3 Patch 6
Status affected
Version 3.4 Patch 2
Status affected
Version 3.3 Patch 7
Status affected
Version 3.4 Patch 3
Status affected
Version 3.5.0
Status affected
Version 3.4 Patch 4
Status affected
Version 3.3 Patch 8
Status affected
Version 3.2 Patch 8
Status affected
Version 3.5 Patch 1
Status affected
Version 3.3 Patch 9
Status affected
Version 3.2 Patch 9
Status affected
Version 3.4 Patch 5
Status affected
Version 3.5 Patch 3
Status affected
Version 3.5 Patch 2
Status affected
Version 3.3 Patch 10
Status affected
Version 3.3 Patch 11
Status affected
Version 3.4 Patch 6
Status affected
Version 3.2 Patch 10
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.344
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Cisco PSIRT 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-RADIUS-dos-wR3hYPMw