CVE intelligence and bounded remediation

CVE-2020-5362 — Dell Chengming 3967 Firmware security vulnerability

High CVSS 7.1

Dell Client Consumer and Commercial platforms include an improper authorization vulnerability in the Dell Manageability interface for which an unauthorized actor, with local system access with OS administrator privileges, could bypass the BIOS Administrator authentication to restore BIOS Setup configuration to default values.

Severity
High
CVSS
7.1 (3.1)
Published
2020-06-10
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-285, CWE-862

Affected products

  • dell / chengming_3967_firmware
  • dell / chengming_3977_firmware
  • dell / chengming_3980_firmware
  • dell / chengming_3988_firmware
  • dell / chengming_3990_firmware
  • dell / chengming_3991_firmware

Showing 6 representative product identities from 354 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.