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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-40737

A vulnerability has been identified in SINEC NMS (All versions < V4.0).

HIGH 8.7EPSS 13.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 13.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

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).

CVSS 4.0
8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
13.44% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-22
Affected
siemens/sinec nms
Source
productcert@siemens.com
EPSS trend
0%8%15%28 September 2026: 10.43%9 October 2026: 13.44%26 October 2026: 13.44%28 September 202626 October 2026

EPSS moved from 10.4% on 28 September 2026 to 13.4% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.