How severe is CVE-2023-28373?

CVE-2023-28373 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-28373 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28373?

CVE-2023-28373 primarily affects Purestorage Purity//fa. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28373?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-28373 published?

CVE-2023-28373 was published on 2023-10-03 and last updated on 2026-06-17.

CVE-2023-28373

CVE-2023-28373 is a medium-severity vulnerability in Purestorage Purity//fa with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Purestorage Purity//fa
Published: 2023-10-03
Last modified: 2026-06-17

Description

A flaw exists in FlashArray Purity whereby an array administrator by configuring an external key manager can affect the availability of data on the system including snapshots protected by SafeMode.

Frequently asked questions

What is CVE-2023-28373?: A flaw exists in FlashArray Purity whereby an array administrator by configuring an external key manager can affect the availability of data on the system including snapshots protected by SafeMode.
How severe is CVE-2023-28373?: CVE-2023-28373 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-28373 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28373?: CVE-2023-28373 primarily affects Purestorage Purity//fa. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-28373?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28373 published?: CVE-2023-28373 was published on 2023-10-03 and last updated on 2026-06-17.

References

https://support.purestorage.com/Employee_Handbooks/Technical_Services/PSIRT/Security_Bulletin_for_FlashArray_SafeMode_Immutable_Vulnerability_CVE-2023-28373

Affected products (2)

cpe:2.3:a:purestorage:purity\/\/fa:*:*:*:*:*:*:*:*
cpe:2.3:a:purestorage:purity\/\/fa:6.4.0:*:*:*:*:*:*:*

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