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CRITICAL

CVE-2026-20307

CVSS v3

9.9

CRITICAL

Score EPSS

1.0 %

probabilité d’exploitation au 2026-09-28

CISA KEV

Non

exploitation connue

Exploitation

—

statut SSVC

Description

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative credentials. This vulnerability is due to insecure deserialization of a user-supplied Java byte stream. An attacker could exploit this vulnerability by sending a crafted serialized Java object to the web

Détails techniques

Publiée le
2026-09-16
Dernière modification
2026-09-17

Questions fréquentes

Qu’est-ce que CVE-2026-20307 ?

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative credentials. This vulnerability is due to insecure deserialization of a user-supplied Java byte stream. An attacker could exploit this vulnerability by sending a crafted serialized Java object to the web

CVE-2026-20307 est-elle activement exploitée ?

Aucune exploitation active de CVE-2026-20307 n’est confirmée. Son score EPSS était de 1.0 % au 2026-09-28, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2026-20307 ?

CVE-2026-20307 a un score de base CVSS v3 de 9.9 (gravité CRITICAL).

CVE-2026-20307 touche-t-elle votre environnement ?

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