Authentication Vulnerability in ArcGIS by Esri
CVE-2025-0020

7.9HIGH

Key Information:

Vendor

Arcgis

Status
Arcgis
Vendor
CVE Published:
14 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-0020?

The ArcGIS client_credentials OAuth 2.0 API implementation is flawed due to a violation of secure design principles. This vulnerability allows unauthorized users to exploit hidden functionality that permits them to request undocumented custom token expirations. Such manipulation enables potential privilege abuse, hidden field manipulation, and modification of configurations, significantly undermining the security posture of applications relying on ArcGIS authentication mechanisms.

Affected Version(s)

ArcGIS 0; 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-0020 - Proof of Concept

References

https://www.vulsec.org/advisories
third-party-advisoryvdb-entryexploit
https://developers.arcgis.com/documentation/security-and-...
technical-descriptionproduct

CVSS V4

Score:
7.9
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erez Kalman
REDACTED
.
CVE-2025-0020 : Authentication Vulnerability in ArcGIS by Esri