CVE-2023-4976
FlashBlade Authentication Mechanism Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- PureStorage
Description
A flaw exists in FlashBlade whereby a local account is permitted to authenticate to the management interface using an unintended method that allows an attacker to gain privileged access to the array.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| PureStorageCNA (assigner) | 4.0 | Critical9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| NVDNVD · Deferred | 4.0 | Critical9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.38% · top 67% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.3.
Weakness
Affected products
- affected 3.3.5 – ≤ 3.3.10
- affected 4.0.4 – ≤ 4.0.6
- affected 4.1.0 – ≤ 4.1.8
- affected 4.2.0 – ≤ 4.2.2
What to do
Solution: This vulnerability can be fixed either by applying a patch or upgrading to an unaffected Purity version. This issue is resolved in the following FlashBlade Purity versions: * Purity//FB 3.3.11 or later * Purity//FB 4.1.9 or later * Purity//FB 4.2.3 or later * Purity//FB 4.3.0 or later * Purity//FB 4.4.0 or later
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-4976)Record last updated .