CVE intelligence and bounded remediation

CVE-2023-26301 — Hp Color Laserjet Pro 4201-4203 4Ra87F Firmware security vulnerability

Critical CVSS 9.8

Certain HP LaserJet Pro print products are potentially vulnerable to an Elevation of Privilege and/or Information Disclosure related to a lack of authentication with certain endpoints.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-07-21
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-862

Affected products

  • hp / color_laserjet_pro_4201-4203_4ra87f_firmware
  • hp / color_laserjet_pro_4201-4203_4ra88f_firmware
  • hp / color_laserjet_pro_4201-4203_4ra89a_firmware
  • hp / color_laserjet_pro_4201-4203_5hh48a_firmware
  • hp / color_laserjet_pro_4201-4203_5hh51a_firmware
  • hp / color_laserjet_pro_4201-4203_5hh52a_firmware

Showing 6 representative product identities from 19 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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