CVE-2026-2812 Details
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.
A vulnerability allowing improper authentication has been identified in ArcGIS Server versions 12.0 and earlier. This issue resides within an undocumented administrative endpoint, where an unauthenticated attacker can send a crafted request to disrupt the web-based browsing interface. While the exploitation of this vulnerability does not affect service availability, API access, or data confidentiality, it may lead to a low-severity integrity impact by disabling the Services Directory web interface.
Users are advised to update to ArcGIS Server Security 2026 Update 1 Patch, which is available through the Esri Patches and Updates page. This patch should be installed as soon as possible to minimize risk.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_security_bulletin | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| esri arcgis server | >= 11.1, <= 12.0 |
CPE
Remediation
| |
| linux linux kernel | All versions |
CPE
Remediation
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| microsoft windows | All versions |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 21, 2026 | Initial Analysis | [email protected] |
| May 20, 2026 | New CVE Received | [email protected] |