CVE-2021-26588

CVE-2021-26588 is a critical-severity vulnerability in Hpe 3par Os with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

A potential security vulnerability has been identified in HPE 3PAR StoreServ, HPE Primera Storage and HPE Alletra 9000 Storage array firmware. An unauthenticated user could remotely exploit the low complexity issue to execute code as administrator. This vulnerability impacts completely the confidentiality, integrity, availability of the array. HPE has made the following software updates and mitigation information to resolve the vulnerability in 3PAR, Primera and Alletra 9000 firmware.

Frequently asked questions

What is CVE-2021-26588?
A potential security vulnerability has been identified in HPE 3PAR StoreServ, HPE Primera Storage and HPE Alletra 9000 Storage array firmware. An unauthenticated user could remotely exploit the low complexity issue to execute code as administrator. This vulnerability impacts completely the confidentiality, integrity, availability of the array. HPE has made the following software updates and mitigation information to resolve the vulnerability in 3PAR, Primera and Alletra 9000 firmware.
How severe is CVE-2021-26588?
CVE-2021-26588 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-26588 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26588?
CVE-2021-26588 primarily affects Hpe 3par Os. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26588?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-26588 published?
CVE-2021-26588 was published on 2021-10-11 and last updated on 2026-06-17.

References

Affected products (9)