CVE-2026-33518 | BDVDB-2026-327987 Detail

EsriPortal for ArcGIS

Description#

An incorrect privilege assignment vulnerability exists in Esri Portal for ArcGIS 11.5 in Windows and Linux that allows highly privileged users to create developer credentials that may grant more privileges than expected.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-266 Incorrect Privilege Assignment (4.19.1)

References#

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_security_bulletin

Exploit#

No public exploit known

History#

Version 12026-04-21Record published in the CVE List.
Version 22026-04-23Most recent update recorded in the CVE List.

Published

Published: 2026-04-21
Last modified: 2026-04-23

Vendor information

Vendor: Esri
Product: Portal for ArcGIS

All Esri vulnerabilities

Score

9.8 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 22.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
11.5
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).