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  3. CVE-2022-41223
Exploited in the wildUsed by ransomwareServers & business softwareWork IT

CVE-2022-41223 Mitel MiVoice Connect: command or code injection

In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.

Confirmed exploited by CISA on · US federal patch deadline Mar 14, 2023

What to do

  1. Install Mitel's security update for MiVoice Connect. If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Keep a list of every internet-facing server you run so nothing is forgotten.
  3. Patch anything in this catalog first, ahead of normal patch cycles.
  4. Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.

Read Mitel's advisory ↗

Who is affected

Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.

The details

Official name
Mitel MiVoice Connect Code Injection Vulnerability
Product
Mitel MiVoice Connect
CISA description
The Director component in Mitel MiVoice Connect allows an authenticated attacker with internal network access to execute code within the context of the application.
Type of flaw
Command or code injection (CWE-94)
Confirmed exploited
Feb 21, 2023 — known to be used in ransomware attacks
US federal patch deadline
Mar 14, 2023

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Answering about CVE-2022-41223 ·

Questions about CVE-2022-41223

Is CVE-2022-41223 being exploited?

Yes. CISA added CVE-2022-41223 to its Known Exploited Vulnerabilities catalog on Feb 21, 2023, which means there is reliable evidence of real-world attacks, including by ransomware groups.

How do I fix CVE-2022-41223?

Install Mitel's security update for MiVoice Connect. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.

Am I affected by CVE-2022-41223?

Only if you use Mitel MiVoice Connect. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

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