CVE-2026-2812

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.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-05-20 20:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-23 12:10 UTC Last updatedMost recent change to the record

Details

Published

2026-05-20 20:16 UTC

Last modified

2026-07-23 12:10 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-287 · Improper authentication

Record status

Analyzed

Affected

• Esri Arcgis Server ≤ 12.0

Attack profile CVSS 3.1 · 5.3

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None