CVE-2026-2812

Name: CVE-2026-2812
Creator: NVD / NIST
Published: 2026-05-20T20:16:36.93+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2026-2812 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.36%

27.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Esri	Arcgis Server	>= 11.1, <= 12.0

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_security_bulletinVendor Advisory

Timeline

Published: May 20, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2812?

How severe is CVE-2026-2812?

CVE-2026-2812 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2812?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2812?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST