CVE intelligence and bounded remediation

CVE-2021-28669 — Xerox Altalink B8045 Firmware security vulnerability

High CVSS 7.5

Xerox AltaLink B80xx before 103.008.020.23120, C8030/C8035 before 103.001.020.23120, C8045/C8055 before 103.002.020.23120 and C8070 before 103.003.020.23120 provide the ability to set configuration attributes without administrative rights.

Severity
High
CVSS
7.5 (3.1)
Published
2021-03-29
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-862

Affected products

  • xerox / altalink_b8045_firmware
  • xerox / altalink_b8055_firmware
  • xerox / altalink_b8065_firmware
  • xerox / altalink_b8075_firmware
  • xerox / altalink_b8090_firmware
  • xerox / altalink_c8030_firmware

Showing 6 representative product identities from 10 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

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