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CVE-2024-55550

2.7, low Known exploited Used in ransomware

Mitel MiCollab Path Traversal Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
2.7, low low CVSS v3.1
EPSS, next 30 days
38% higher than 98.5% of scored CVEs
Exploitation
Confirmed in the wild
Published
10 Dec 2024a year ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 7 Jan 2025 and links it to ransomware activity. US federal agencies had to remediate by 28 Jan 2025, a deadline that has passed.

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

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.

Details

Vendor
Mitel
Product
Micollab
Weakness
CWE-22 (opens in a new tab)
Status
Analyzed
Updated
4 Aug 2026
Assigner
cve@mitre.org

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

References 3

Advisories 2

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Mitel CVEs

Every Mitel CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2024-41713 Mitel MiCollab Path Traversal Vulnerability KEV EPSS 97% 9.1, critical
  • CVE-2024-41710 Mitel SIP Phones Argument Injection Vulnerability KEV EPSS 42% 7.2, high
  • CVE-2022-40765 Mitel MiVoice Connect Command Injection Vulnerability KEV EPSS 11% 6.8, medium
  • CVE-2022-41223 Mitel MiVoice Connect Code Injection Vulnerability KEV EPSS 11% 6.8, medium
  • CVE-2022-29499 Mitel MiVoice Connect Data Validation Vulnerability KEV EPSS 55% 9.8, critical
  • CVE-2022-26143 MiCollab, MiVoice Business Express Access Control Vulnerability KEV EPSS 87% 9.8, critical

Beyond this page

Is CVE-2024-55550 in your network?

This page tells you how dangerous CVE-2024-55550 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2024-55550 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2024-55550 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.