How severe is CVE-2021-27005?

CVE-2021-27005 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-27005 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27005?

CVE-2021-27005 primarily affects Netapp Ontap System Manager. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-27005?

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-2021-27005 published?

CVE-2021-27005 was published on 2021-11-01 and last updated on 2026-06-17.

CVE-2021-27005

CVE-2021-27005 is a high-severity vulnerability in Netapp Ontap System Manager with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netapp Ontap System Manager
Published: 2021-11-01
Last modified: 2026-06-17

Description

Clustered Data ONTAP versions 9.6 and higher prior to 9.6P16, 9.7P16, 9.8P7 and 9.9.1P3 are susceptible to a vulnerability which could allow a remote attacker to cause a crash of the httpd server.

Frequently asked questions

What is CVE-2021-27005?: Clustered Data ONTAP versions 9.6 and higher prior to 9.6P16, 9.7P16, 9.8P7 and 9.9.1P3 are susceptible to a vulnerability which could allow a remote attacker to cause a crash of the httpd server.
How severe is CVE-2021-27005?: CVE-2021-27005 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-27005 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27005?: CVE-2021-27005 primarily affects Netapp Ontap System Manager. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-27005?: 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-2021-27005 published?: CVE-2021-27005 was published on 2021-11-01 and last updated on 2026-06-17.

References

https://security.netapp.com/advisory/NTAP-20211029-0002/

Affected products (4)

cpe:2.3:a:netapp:ontap_system_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_system_manager:9.7:-:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_system_manager:9.8:-:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_system_manager:9.9.12:-:*:*:*:*:*:*

More vulnerabilities in Netapp Ontap System Manager

CVE-2021-27004 — Medium (CVSS 5.5): System Manager 9.x versions 9.7 and higher prior to 9.7P16, 9.8P7 and 9.9.1P2 are susceptible to a vulnerability which…

All CVEs affecting Netapp Ontap System Manager →