Security readout for executives and security teams
Plain-English summary
Dell PowerScale OneFS versions 8.1.0 through 9.1.0 can fail to connect to LDAP authentication providers using TLSv1.2. For affected clusters that depend on LDAP, this can make authentication-related traffic easier to eavesdrop on and decrypt. Clusters not using LDAP as an authentication provider are stated as not affected.
Executive priority
Treat as high priority for storage environments using LDAP authentication, especially where PowerScale holds sensitive business data. It is not a blanket emergency for all PowerScale deployments because the source excludes clusters not relying on LDAP.
Technical view
CVE-2020-26197 is a high-severity CWE-326 issue in Dell PowerScale OneFS 8.1.0-9.1.0. The LDAP provider cannot connect over TLSv1.2, weakening protection for LDAP authentication traffic. CVSS 3.1 score is 7.5 with network attack vector, high complexity, no privileges required, user interaction required, and high CIA impact.
Likely exposure
Exposure is limited to Dell PowerScale OneFS 8.1.0-9.1.0 clusters that rely on an LDAP server for authentication. The source explicitly says clusters not relying on LDAP authentication are not affected.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The plausible risk is interception and decryption of LDAP authentication traffic where affected OneFS clusters use LDAP. Evidence in the bundle is limited to the CVE description, CVSS data, and Dell advisory reference.
Researcher notes
Do not broaden scope beyond Dell PowerScale OneFS 8.1.0-9.1.0 with LDAP authentication. The source bundle does not name a specific fixed version or workaround. Avoid asserting exploitation without KEV or a cited exploitation source.
Mitigation direction
- Inventory Dell PowerScale OneFS versions across storage clusters.
- Identify clusters using LDAP as an authentication provider.
- Review Dell advisory 000185202 for vendor-approved remediation.
- Prioritize remediation for LDAP-dependent clusters handling sensitive data.
- Use compensating network controls until vendor guidance is applied.
Validation and detection
- Confirm whether each cluster runs OneFS 8.1.0 through 9.1.0.
- Check authentication provider configuration for LDAP reliance.
- Verify whether Dell guidance or updates have been applied.
- Review monitoring for unexpected LDAP authentication traffic exposure.
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
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ATT&CK lookup starting points
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CWE-326: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-26197 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H1.65.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dell.com/support/kbdoc/000185202CVE reference · x_refsource_MISC
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.
Inadequate Encryption Strength
Inadequate Encryption Strength represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.