Skip to content
CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-33521

BUG-000186514 - ArcGIS Server has a security vulnerability.

Description

There is s denial of service vulnerability in Esri ArcGIS Server versions 12.0 and prior that may allow a remote, unauthenticated attacker to supply crafted requests that may, under exceptional circumstances, consume all available worker threads and deny service to users. A patch is provided for ArcGIS Server software in General Availability and Extended support status, which includes versions 12.0, 11.5, 11.3, and 11.1. Other versions are in mature or retired status, which are not patch eligible. Users working with unlisted versions are advised to upgrade and apply the patch.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Esri ArcGIS Server

Default version status: unaffected

  • 11.1 to < 12.0affected

References