CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2021-29108
High (8.8) in esri portal for arcgis. EPSS 0.8% chance of exploitation in the next 30 days.
There is an privilege escalation vulnerability in organization-specific logins in Esri Portal for ArcGIS versions 10.9 and below that may allow a remote, authenticated attacker who is able to intercept and modify a SAML assertion to impersonate another account (XML Signature Wrapping Attack). In addition patching, Esri also strongly recommends as best practice for SAML assertions to be signed and encrypted.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
- CWE
- CWE-347
- Published
- Modified
- Record from
- the NVD, synced
Affected
- esri:portal_for_arcgis
References
- https://downloads.esri.com/RESOURCES/ENTERPRISEGIS/Organization-Specific_Logins_FAQs.pdf
- https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/Portal-for-ArcGIS-Security-2021-Update-1-Patch/
- https://downloads.esri.com/RESOURCES/ENTERPRISEGIS/Organization-Specific_Logins_FAQs.pdf
- https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/Portal-for-ArcGIS-Security-2021-Update-1-Patch/