5.3

CVE-2026-20195

Medienbericht

Cisco Identity Services Engine Observable Response Discrepancy Vulnerability

A vulnerability in an identity management API endpoint of Cisco ISE could allow an unauthenticated, remote attacker to enumerate valid user accounts on an affected device.

This vulnerability exists because error messages are observed when the affected API endpoint is called. An attacker could exploit this vulnerability by sending a series of crafted requests to the affected endpoint and analyzing the differentiated responses. A successful exploit could allow the attacker to compile a list of valid usernames on an affected system.
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 3.3.0
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 3.3 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 3.5 Patch 1
Status affected
Version 3.3 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
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.112
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-204 Observable Response Discrepancy

The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.