Remote Code Execution Vulnerability in Esri ArcGIS Server
CVE-2026-33522

5.3MEDIUM

Key Information:

Vendor

Esri

Status
Arcgis Server
Vendor
CVE Published:
26 October 2026

What is CVE-2026-33522?

A vulnerability in Esri's ArcGIS Server versions 11.3 to 12.0 allows remote, unauthenticated attackers to update service metadata. This may lead to unauthorized access or manipulation of services. Affected users are strongly urged to upgrade to the latest patched versions, as older versions may not receive critical updates. Ensure your systems are secure by addressing this vulnerability promptly.

Affected Version(s)

ArcGIS Server Windows 11.3 < 12.0

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/ad...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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