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CVE-2024-55550

Mitel MiCollab Path Traversal

2.7 LOWActively exploited (CISA KEV)Used in ransomwareEPSS 38.2%
  1. Published10 Dec 2024
  2. Added to CISA KEV7 Jan 2025
  3. Remediation due28 Jan 2025
Actively exploited (CISA KEV)

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.

Added to KEV: 7 Jan 2025Federal remediation due: 28 Jan 2025Used in ransomware

Description

Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative privilege to conduct a local file read, due to insufficient input sanitization. A successful exploit could allow the authenticated admin attacker to access resources that are constrained to the admin access level, and the disclosure is limited to non-sensitive system information. This vulnerability does not allow file modification or privilege escalation.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Affected products

Mitel Micollab≤ 9.8.1.201

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2024-55550 being actively exploited?

Yes. CVE-2024-55550 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 7 Jan 2025. It has been used in ransomware campaigns.

How severe is CVE-2024-55550?

CVE-2024-55550 has a CVSS 3.1 base score of 2.7, rated low. EPSS estimates a 38.2% probability of exploitation.

Which products are affected by CVE-2024-55550?

Affected products include Mitel Micollab.

How do I fix CVE-2024-55550?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-55550 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.