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Cisco ISE API Authentication Bypass Vulnerability

CVSS 3.1 10.0 CRITICALCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-76423

Published

A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device. This vulnerability is due to the REST API web service being exposed with insufficient authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to the exposed REST API port. A successful exploit could allow the attacker to read and modify ISE configuration and identity data with administrative privileges.

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Affected versions, risk and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-76423 · CVE overview and exploitation status

cve-program · CVE-2026-76423

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ChangeIntel

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Sources read 13 Nov 09:00 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current