How severe is CVE-2026-58574?

CVE-2026-58574 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-2026-58574 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-58574?

CVE-2026-58574 primarily affects Dell Powerstoreos. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-58574?

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-2026-58574 published?

CVE-2026-58574 was published on 2026-08-31 and last updated on 2026-10-01.

CVE-2026-58574

CVE-2026-58574 is a critical-severity vulnerability in Dell Powerstoreos 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. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Dell Powerstoreos
Published: 2026-08-31
Last modified: 2026-10-01

Description

Dell PowerStore contains a Missing Authentication for Critical Function vulnerability. An unauthenticated attacker with network access to the restricted management interface could potentially exploit this vulnerability to read internal system information from the appliance filesystem. This is a Critical vulnerability as it could expose sensitive information and credentials which allow full administrative access to the array.

Frequently asked questions

What is CVE-2026-58574?: Dell PowerStore contains a Missing Authentication for Critical Function vulnerability. An unauthenticated attacker with network access to the restricted management interface could potentially exploit this vulnerability to read internal system information from the appliance filesystem. This is a Critical vulnerability as it could expose sensitive information and credentials which allow full administrative access to the array.
How severe is CVE-2026-58574?: CVE-2026-58574 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-2026-58574 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-58574?: CVE-2026-58574 primarily affects Dell Powerstoreos. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-58574?: 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-2026-58574 published?: CVE-2026-58574 was published on 2026-08-31 and last updated on 2026-10-01.

References

https://www.dell.com/support/kbdoc/en-us/000497829/dsa-2026-330-dell-powerstore-t-security-update-for-multiple-vulnerabilities

Affected products (9)

cpe:2.3:o:dell:powerstoreos:4.1.0.0:build_2435323:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.1.0.1:build_2529516:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.1.0.2:build_2567482:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.1.0.3:build_2596462:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.1.0.4:build_2633110:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.1.0.5:build_2691357:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.3.0.0:build_2611831:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.3.1.0:build_2662695:*:*:*:*:*:*
cpe:2.3:o:dell:powerstoreos:4.3.1.1:build_2726662:*:*:*:*:*:*

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