What is CVE-2021-32067?

CVE-2021-32067 is a medium-severity vulnerability in Mitel Micollab, classified under Improper Encoding or Escaping of Output. CVSS score: 6.5/10. Published 2021-08-13.

How severe is CVE-2021-32067?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Mitel Micollab

CVE-2021-32067

The MiCollab Client Service component in Mitel MiCollab before 9.3 could allow an attacker to view sensitive system information through an HTTP response due to insufficient output sanitization.

Published 2021-08-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Mitel Micollab

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

www.mitel.com/support/security-advisories (Vendor Advisory)
www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-00… (Vendor Advisory)

Frequently asked questions

What is CVE-2021-32067?: CVE-2021-32067 is a medium-severity vulnerability in Mitel Micollab, classified under Improper Encoding or Escaping of Output. CVSS score: 6.5/10. Published 2021-08-13.
How severe is CVE-2021-32067?: Medium severity. CVSS v3 base score is 6.5 out of 10.