THREATPORT/VULNERABILITY/CVE-2025-40737
HIGH SEVERITY

CVE-2025-40737

Sinec Nms vulnerability

CVSS
8.8
EPSS
7.2%
EPSS pct
94th
Exploited
No known
A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application does not properly validate file paths when extracting uploaded ZIP files. This could allow an attacker to write arbitrary files to restricted locations and potentially execute code with elevated privileges (ZDI-CAN-26571).
Affected vendor
Siemens
Affected product
Sinec Nms
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2025-07-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 7.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2025-40737

  • Confirm whether Siemens Sinec Nms is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-40737.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-40737

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