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Esri ArcGIS ServerImproper Authentication issue in ArcGIS Server

Risk 27
Severity
5.3
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

ArcGIS Server contains an improper authentication vulnerability in an undocumented administrative endpoint. An unauthenticated attacker could exploit this issue by sending a crafted request to the endpoint. Successful exploitation may result in disruption of the web-based browsing interface. This issue affects ArcGIS Server 12.0 and earlier.

First published (updated )
CVE-2026-2812

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