What’s Vulnerable › Vulnerabilities

CVE-2021-32068

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-13 · updated 2026-06-17
• Weakness: CWE-770

Description

The AWV and MiCollab Client Service components in Mitel MiCollab before 9.3 could allow an attacker to perform a Man-In-the-Middle attack by sending multiple session renegotiation requests, due to insufficient TLS session controls. A successful exploit could allow an attacker to modify application data and state.

Affected products

• Mitel Micollab: before 9.3 — fixed in 9.3

How to fix

Upgrade to a fixed version: Mitel Micollab 9.3. Check the vendor advisory for mitigations.

References

• https://www.mitel.com/support/security-advisories
• https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-0005
• https://www.mitel.com/support/security-advisories
• https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-0005

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