How severe is CVE-2018-5490?

CVE-2018-5490 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-2018-5490 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5490?

CVE-2018-5490 affects Netapp Clustered Data Ontap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-5490?

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.

When was CVE-2018-5490 published?

CVE-2018-5490 was published on 2018-08-03 and last updated on 2026-06-17.

CVE-2018-5490

CVE-2018-5490 is a high-severity vulnerability in Netapp Clustered Data Ontap 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-732.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Netapp Clustered Data Ontap
Published: 2018-08-03
Last modified: 2026-06-17

Description

Read-Only export policy rules are not correctly enforced in Clustered Data ONTAP 8.3 Release Candidate versions and therefore may allow more than "read-only" access from authenticated SMBv2 and SMBv3 clients. This behavior has been resolved in the GA release. Customers running prior release candidates (RCs) are requested to update their systems to the NetApp Data ONTAP 8.3 GA release.

Frequently asked questions

What is CVE-2018-5490?: Read-Only export policy rules are not correctly enforced in Clustered Data ONTAP 8.3 Release Candidate versions and therefore may allow more than "read-only" access from authenticated SMBv2 and SMBv3 clients. This behavior has been resolved in the GA release. Customers running prior release candidates (RCs) are requested to update their systems to the NetApp Data ONTAP 8.3 GA release.
How severe is CVE-2018-5490?: CVE-2018-5490 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-2018-5490 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5490?: CVE-2018-5490 affects Netapp Clustered Data Ontap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-5490?: 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.
When was CVE-2018-5490 published?: CVE-2018-5490 was published on 2018-08-03 and last updated on 2026-06-17.

References

https://security.netapp.com/advisory/ntap-20150324-0001/

Affected products (1)

cpe:2.3:a:netapp:clustered_data_ontap:*:*:*:*:*:*:*:*

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