CVE-2021-32069: mitel micollab Improper Certificate Validation
Vulnerability summary
CVE-2021-32069 is a medium (CVSS 5.8) Improper Certificate Validation vulnerability in mitel micollab. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 44.2% of scored vulnerabilities.
Not severe (CVSS 4.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 13-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The AWV component of Mitel MiCollab before 9.3 could allow an attacker to perform a Man-In-the-Middle attack due to improper TLS negotiation. A successful exploit could allow an attacker to view and modify data.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.52%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.52% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Mitel1 product
- micollab< 9.3
1 vendor · 1 product
References
2 links- www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-0005X Refsource MISCVendor Advisory