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MEDIUM · CVSS 6.8 CISA Known Exploited Vulnerability

CVE-2022-40765

Mitel MiVoice Connect Command Injection Vulnerability

Mitel MiVoice Connect

A vulnerability in the Edge Gateway component of Mitel MiVoice Connect through 19.3 (22.22.6100.0) could allow an authenticated attacker with internal network access to conduct a command-injection attack, due to insufficient restriction of URL parameters.

CVSS
6.8
MEDIUM
EPSS
10.6%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
22 Nov 2022
CWE-77

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 21 February 2023. US federal agencies were required to remediate it by 14 March 2023. CISA records this vulnerability as known to be used in ransomware campaigns.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 10.6%, which is higher than 95.8% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Frequently asked questions

Is CVE-2022-40765 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2022-40765.

What does CVE-2022-40765 affect?

CVE-2022-40765 affects Mitel MiVoice Connect. A vulnerability in the Edge Gateway component of Mitel MiVoice Connect through 19.3 (22.22.6100.0) could allow an authenticated attacker with internal network access to conduct a command-injection attack, due to insufficient restriction of URL parameters.

How severe is CVE-2022-40765?

CVE-2022-40765 is rated MEDIUM with a CVSS base score of 6.8. EPSS puts the probability of exploitation in the next 30 days at 10.6%, higher than 95.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 14 March 2023.

How should organisations respond to CVE-2022-40765?

Apply the vendor patch for Mitel MiVoice Connect as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.