How severe is CVE-2025-40737?

CVE-2025-40737 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-40737 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40737?

CVE-2025-40737 affects Siemens Sinec Nms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40737?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-40737 have an EU (EUVD) identifier?

Yes. CVE-2025-40737 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20432.

When was CVE-2025-40737 published?

CVE-2025-40737 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-40737

CVE-2025-40737 is a high-severity vulnerability in Siemens Sinec Nms with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20432
Weakness: CWE-22
Affected product: Siemens Sinec Nms
Published: 2025-07-08
Last modified: 2026-06-17

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).

Frequently asked questions

What is CVE-2025-40737?: 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).
How severe is CVE-2025-40737?: CVE-2025-40737 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-40737 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40737?: CVE-2025-40737 affects Siemens Sinec Nms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40737?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-40737 have an EU (EUVD) identifier?: Yes. CVE-2025-40737 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20432.
When was CVE-2025-40737 published?: CVE-2025-40737 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-078892.html

Affected products (1)

cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*

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