Security readout for executives and security teams
Plain-English summary
Dell OpenManage Enterprise before 3.6.1 has a critical authentication flaw. An unauthenticated remote attacker could potentially take over an elevated session or perform unauthorized actions by sending malformed data. This affects a high-value management product, so exposed or unpatched instances should be treated as urgent.
Executive priority
Treat as high-priority remediation because it affects administrative infrastructure and requires no attacker credentials or user interaction. Patch exposed instances first, then complete internal coverage.
Technical view
CVE-2021-21564 is an improper authentication issue in Dell OpenManage Enterprise versions prior to 3.6.1. The CVSS 3.1 score is 9.8 with network attack vector, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to organizations running Dell OpenManage Enterprise below 3.6.1. Risk is higher where the product is reachable over untrusted networks or broadly accessible internally.
Exploitation context
The provided bundle does not show CISA KEV listing or confirmed active exploitation. The vulnerability is remotely reachable and unauthenticated, which increases attacker interest, but exploit availability is not established here.
Researcher notes
Evidence supports critical severity and remote unauthenticated attack potential. The source bundle does not provide exploit mechanics, indicators of compromise, or proof of active exploitation, so validation should focus on version, exposure, and abnormal administrative activity.
Mitigation direction
- Upgrade Dell OpenManage Enterprise to version 3.6.1 or later.
- Review Dell advisory 000189673 for supported remediation guidance.
- Prioritize instances reachable from untrusted or broad internal networks.
- Restrict access to trusted administrative networks where feasible.
- Monitor for unexpected elevated sessions or unauthorized administrative actions.
Validation and detection
- Inventory all Dell OpenManage Enterprise deployments and versions.
- Flag any instance running a version earlier than 3.6.1.
- Confirm whether management access is exposed beyond trusted administrators.
- Review logs for unusual session activity or unauthorized changes.
- After remediation, verify the reported version is 3.6.1 or later.
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2021-21564 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
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dell.com/support/kbdoc/000189673CVE 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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.