CVE-2026-2812CWE-287

Improper Authentication issue in ArcGIS Server

Medium · published May 20, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
30.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00376 · 30.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-05-20T17:47Z
EPSS history
Timeline
  • 20 MAY 17:47Z
    Improper Authentication issue in ArcGIS Server
    cvelistv5