FlashArray SafeMode Immutable Vulnerability

published 2023-10-02 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32069

cvss: 4.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-23)

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.4	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	2.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Affected products

Pure Storage FlashArray Purity

References

support.purestorage.com /Employee_Handbooks/Technical_Services/PSIRT/Security_Bulletin_for_FlashArray_SafeMode_Immutable_Vulnerability
vendor-advisory

Sources

CVE List CVE-2023-28373
NVD CVE-2023-28373

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary