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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2020-10211

A remote code execution vulnerability in UCB component of Mitel MiVoice Connect before 19.1 SP1 could allow an unauthenticated remote attacker to execute arbitrary scripts due to insufficient validation of URL parameters.

CRITICAL 9.8EPSS 3.05%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A remote code execution vulnerability in UCB component of Mitel MiVoice Connect before 19.1 SP1 could allow an unauthenticated remote attacker to execute arbitrary scripts due to insufficient validation of URL parameters. A successful exploit could allow an attacker to gain access to sensitive information.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.05% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
mitel/mivoice connect
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 3.05%26 October 202626 October 2026

EPSS 3.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.