Applied Cybernetics Group
Threat intel → detection pipeline
Friday, September 18, 2026
Data as of 13:09 UTC

known ransomware use

Mitel MiCollab Path Traversal Vulnerability

Added to KEV
2025-01-07
Federal due date
2025-01-28
Vendor
Mitel
Product
MiCollab
EPSS
99.9th percentile (score 0.981, as of 2026-09-16)
NVD CVSS v3.1
9.1 (CRITICAL)
Ransomware use
Known
ATT&CK
T1005 , T1068 · signal rollup
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2024-41713

CISA short description

Mitel MiCollab contains a path traversal vulnerability that could allow an attacker to gain unauthorized and unauthenticated access. This vulnerability can be chained with CVE-2024-55550, which allows an unauthenticated, remote attacker to read arbitrary files on the server.

Required action

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

NVD description

A vulnerability in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab through 9.8 SP1 FP2 (9.8.1.201) could allow an unauthenticated attacker to conduct a path traversal attack, due to insufficient input validation. A successful exploit could allow unauthorized access, enabling the attacker to view, corrupt, or delete users' data and system configurations.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.