CVE-2026-2812 MEDIUM

CVE-2026-2812: Improper Authentication issue in ArcGIS Server

Vendor Esri
Product ArcGIS Server
Weakness CWE-287 · Improper authentication
Published May 20, 2026
Last update May 20, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 20, 2026 CVE published
May 20, 2026 Record updated