Paper/Archive/CVE-2026-9181

CVE-2026-9181

Esri ArcGIS Server — Directory Traversal in ArcGIS Server

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 68.7.687 × 2013.7 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Esri ArcGIS Server contains a directory traversal vulnerability. ArcGIS Enterprise on Kubernetes is not impacted. An unauthenticated attacker could exploit this issue by sending crafted path parameters. Successful exploitation could allow overwriting sensitive files on the system. Abuse of this issue can allow full administrative access to ArcGIS Server, with high impact to confidentiality, integrity, and availability. This issue impacts all versions of ArcGIS Server on Windows and Linux 12.0 and prior. This issue does not impact ArcGIS Enterprise for Kubernetes.

Affected

ProductAffectedFixed inSource

ArcGIS Server≤ 12.0–CNA

Scores by source

Esri (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refesri.com/arcgis-blog/products/arcgis-enterprise/administration/may-2026-arcgis-security-bulletin