CVE-2026-20352
Cisco Identity Services Engine RADIUS Denial of Service Vulnerability
HIGH 8.6
En bref
- Source
- NVD
- EPSS
- EPSS 0.57 % · centile 47 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- cisco
- Statut NVD
- Awaiting Analysis
Description
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.
Faiblesses (CWE)
- CWE-119 — Opération hors des limites d'un tampon mémoire
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-81121
- GCVE · GCVE-0-2026-20352
Avis du CERT-FR
- CERTFR-2026-AVI-1197 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Cisco · Cisco Identity Services Engine Software | affected 3.2.0 ; affected 3.2.0 p1 ; affected 3.2.0 p2 ; affected 3.3.0 ; affected 3.2.0 p3 ; affected 3.2.0 p4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |