Known Exploited Vulnerability

CVE-2024-55550

Mitel MiCollab Path Traversal Vulnerability

Ransomware campaign Added 07 Jan 2025 Due 28 Jan 2025 · 556 days ago
VendorMitel
ProductMiCollab
WeaknessCWE-22
RansomwareKnown use

What the flaw is

Mitel MiCollab contains a path traversal vulnerability that could allow an authenticated attacker with administrative privileges to read local files within the system due to insufficient input sanitization. This vulnerability can be chained with CVE-2024-41713, which allows an unauthenticated, remote attacker to read arbitrary files on the server.

Description as published by CISA. We have not independently reproduced it.

What CISA requires

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This deadline is binding on US federal civilian agencies under BOD 22-01. It is not a legal deadline for anyone else, but it is a useful urgency signal — CISA sets it by how actively the flaw is being used, not by CVSS.

Public exploit code

We hold no public exploit references for this CVE. That means our dataset has none — it is not evidence that no exploit exists. CISA has confirmed this vulnerability is being exploited in the wild regardless.

Vendor advisories

Primary sources

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Source: CISA KEV catalog · last verified August 6, 2026. Rebuilt automatically twice a day.