Security readout for executives and security teams
Plain-English summary
This vulnerability affects Pure Storage FlashBlade management access. In listed versions, a local account can authenticate through an unintended method and gain privileged access. For organizations using affected FlashBlade arrays, this is a critical administrative-control risk, especially if management interfaces are reachable from broad networks.
Executive priority
Treat this as urgent for any environment using affected FlashBlade versions. The issue concerns privileged storage-array administration, so compromise could affect availability, integrity, and confidentiality of critical stored data. Prioritize inventory, vendor remediation confirmation, and management-plane access restriction.
Technical view
CVE-2023-4976 is a CWE-269 privilege management issue in Pure Storage FlashBlade. The CVE states a local account may authenticate to the management interface through an unintended method, enabling privileged array access. Affected versions listed are 3.3.5, 4.0.4, 4.1.0, and 4.2.0.
Likely exposure
Exposure appears limited to organizations running the named FlashBlade versions. Risk depends heavily on who can reach the management interface and whether local accounts exist. The source bundle does not identify affected cloud services, other Pure Storage products, or default internet exposure.
Exploitation context
The CVE is not listed as KEV in the provided data, and the source bundle gives no evidence of active exploitation or public exploit availability.
Researcher notes
The public details are sparse. The CVSS v4.0 vector indicates network attackability, low complexity, no privileges, and high impact to the vulnerable system. However, the bundle does not provide technical root cause, fixed releases, detection indicators, or exploit confirmation.
Mitigation direction
- Inventory FlashBlade arrays and confirm whether any run 3.3.5, 4.0.4, 4.1.0, or 4.2.0.
- Check Pure Storage security guidance or support channels for fixed versions and remediation instructions.
- Restrict FlashBlade management interface access to trusted administrative networks only.
- Review local accounts and remove or disable accounts that are not operationally required.
- Increase monitoring for unexpected privileged management logins until remediation is complete.
Validation and detection
- Confirm product and version directly from FlashBlade administrative inventory records.
- Verify management interfaces are not reachable from untrusted networks.
- Review authentication logs for unexpected local-account management access.
- Confirm remediation status against current Pure Storage security guidance.
- Document remaining affected arrays, compensating controls, and planned remediation dates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-4976 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (4.0)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- https://www.purestorage.com/securityCVE reference
- https://purestorage.com/securityCVE reference · x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.