How severe is CVE-2025-40898?

CVE-2025-40898 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2025-40898 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40898?

CVE-2025-40898 primarily affects Nozominetworks Cmc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-40898?

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-2025-40898 have an EU (EUVD) identifier?

Yes. CVE-2025-40898 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204258.

When was CVE-2025-40898 published?

CVE-2025-40898 was published on 2025-12-18 and last updated on 2026-06-17.

CVE-2025-40898

CVE-2025-40898 is a high-severity vulnerability in Nozominetworks Cmc with a CVSS 3.x base score of 8.1. 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 8.1)
CVSS v4: 7.2
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204258
Weakness: CWE-22
Affected product: Nozominetworks Cmc
Published: 2025-12-18
Last modified: 2026-06-17

Description

A path traversal vulnerability was discovered in the Import Arc data archive functionality due to insufficient validation of the input file. An authenticated user with limited privileges, by uploading a specifically-crafted Arc data archive, can potentially write arbitrary files in arbitrary paths, altering the device configuration and/or affecting its availability.

Frequently asked questions

What is CVE-2025-40898?: A path traversal vulnerability was discovered in the Import Arc data archive functionality due to insufficient validation of the input file. An authenticated user with limited privileges, by uploading a specifically-crafted Arc data archive, can potentially write arbitrary files in arbitrary paths, altering the device configuration and/or affecting its availability.
How severe is CVE-2025-40898?: CVE-2025-40898 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2025-40898 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40898?: CVE-2025-40898 primarily affects Nozominetworks Cmc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-40898?: 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-2025-40898 have an EU (EUVD) identifier?: Yes. CVE-2025-40898 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204258.
When was CVE-2025-40898 published?: CVE-2025-40898 was published on 2025-12-18 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:nozominetworks:cmc:*:*:*:*:*:*:*:*
cpe:2.3:a:nozominetworks:guardian:*:*:*:*:*:*:*:*

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