Security readout for executives and security teams
Plain-English summary
Dell Networking OS10 devices from before October 2021 can let an unauthenticated remote attacker bypass authentication when RESTCONF is enabled. Successful abuse could allow access and actions on the device, affecting confidentiality, integrity, and availability.
Executive priority
Treat as high priority for network infrastructure teams, especially where management interfaces are reachable beyond trusted administration networks. Prioritize inventory, RESTCONF exposure checks, and vendor-guided updates.
Technical view
CVE-2021-36306 is a CWE-287 authentication bypass in Dell Networking OS10 with RESTCONF API enabled. The CVSS 3.1 score is 8.1, with network attack vector, no privileges or user interaction required, high impact, and high attack complexity.
Likely exposure
Exposure is limited to Dell Networking OS10 systems running versions prior to October 2021 with RESTCONF enabled. Internet or untrusted network reachability would increase business risk.
Exploitation context
The supplied sources do not show CISA KEV listing or confirmed active exploitation. The vulnerability is remotely reachable, but CVSS marks attack complexity as high.
Researcher notes
Evidence identifies Dell Networking OS10 before October 2021 with RESTCONF enabled. Product version granularity, platform-specific fixed builds, and exploit indicators are not present in the supplied bundle; use Dell's advisory for exact operational details.
Mitigation direction
- Review Dell KB 000193076 for exact affected and fixed OS10 versions.
- Upgrade affected OS10 systems according to Dell's October 2021 or later guidance.
- Disable RESTCONF where it is not operationally required.
- Restrict management and RESTCONF access to trusted administrative networks only.
Validation and detection
- Inventory Dell Networking OS10 devices and record OS10 versions.
- Check whether each device has RESTCONF enabled.
- Confirm no pre-October 2021 OS10 systems expose RESTCONF to untrusted networks.
- Verify remediation against Dell KB 000193076 after maintenance.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-36306 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
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/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:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/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/en-us/000193076CVE 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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.