CVE intelligence and bounded remediation

CVE-2022-3431 — Lenovo Ideapad Creator 5-16Ach6 Firmware security vulnerability

High CVSS 7.8

A potential vulnerability in a driver used during manufacturing process on some consumer Lenovo Notebook devices that was mistakenly not deactivated may allow an attacker with elevated privileges to modify secure boot setting by modifying an NVRAM variable.

Severity
High
CVSS
7.8 (3.1)
Published
2023-10-09
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-276

Affected products

  • lenovo / ideapad_creator_5-16ach6_firmware
  • lenovo / ideapad_5_pro-16ihu6_firmware
  • lenovo / ideapad_5_pro-16ach6_firmware
  • lenovo / yoga_slim_7-13itl05_firmware
  • lenovo / yoga_slim_7-13acn05_firmware
  • lenovo / yoga_slim_7_pro_16arh7_firmware

Showing 6 representative product identities from 25 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Privilege escalation and unsafe privilege management

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

Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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