How severe is CVE-2023-31042?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Pure Storage Flashblade Purity

CVE-2023-31042

A flaw exists in FlashBlade Purity whereby an authenticated user with access to FlashBlade’s object store protocol can impact the availability of the system’s data access and replication protocols.

Published 2023-10-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Pure Storage Flashblade Purity — versions 3.3.6, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.1.0, 4.1.1
Purestorage Purity

References

support.purestorage.com/Employee_Handbooks/Technical_Services/PSIRT/Security_Bu… (Vendor Advisory)

Frequently asked questions

What is CVE-2023-31042?: CVE-2023-31042 is a high-severity vulnerability in Pure Storage Flashblade Purity. CVSS score: 7.7/10. Published 2023-10-02.
How severe is CVE-2023-31042?: High severity. CVSS v3 base score is 7.7 out of 10.