CVE intelligence and bounded remediation

CVE-2022-31638 — Hp Zcentral 4R Workstation Firmware security vulnerability

High CVSS 7.8

Potential time-of-check to time-of-use (TOCTOU) vulnerabilities have been identified in the BIOS for certain HP PC products, which might allow arbitrary code execution, escalation of privilege, denial of service, and information disclosure.

Severity
High
CVSS
7.8 (3.1)
Published
2023-06-13
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-367

Affected products

  • hp / zcentral_4r_workstation_firmware
  • hp / z1_all-in-one_g3_workstation_firmware
  • hp / elitebook_725_g4_firmware
  • hp / elitebook_745_g4_firmware
  • hp / elitebook_755_g4_firmware
  • hp / probook_645_g3_firmware

Showing 6 representative product identities from 403 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Race condition, TOCTOU, and lifecycle synchronization

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Check exposure

  • Map concurrent actors, shared state, lock boundaries, signals, callbacks, retries, and check-then-use sequences in the affected path.
  • Determine whether untrusted users can influence timing, object names, filesystem state, or repeated state transitions.
  • Identify clustered and multi-process behavior that repository-local tests may not represent.

Remediate safely

  • Make the sensitive state transition atomic or protect it with a consistently ordered synchronization primitive.
  • Perform authorization and invariant checks on the same authoritative object and transaction used for the operation.
  • Use unique private resources, safe ownership transfer, and idempotent operations; add deterministic concurrency regression tests.

Authoritative sources

Complete CVE record and remediation plan

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