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.

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Fixes

Solution

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Workaround

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History

Wed, 20 May 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Esri
Esri arcgis Server
Vendors & Products Esri
Esri arcgis Server

Wed, 20 May 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 20 May 2026 19:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Improper Authentication issue in ArcGIS Server
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Esri

Published:

Updated: 2026-05-20T19:30:36.857Z

Reserved: 2026-02-19T16:37:22.095Z

Link: CVE-2026-2812

cve-icon Vulnrichment

Updated: 2026-05-20T19:30:33.045Z

cve-icon NVD

Status : Received

Published: 2026-05-20T20:16:36.930

Modified: 2026-05-20T20:16:36.930

Link: CVE-2026-2812

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T20:30:39Z

Weaknesses