CVE intelligence and bounded remediation

CVE-2021-0093 — Intel Atom C3308 security vulnerability

Medium CVSS 4.4

Incorrect default permissions in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable a denial of service via local access.

Severity
Medium
CVSS
4.4 (3.1)
Published
2022-02-09
CISA KEV
Not currently listed
Ecosystem
hardware/firmware
Weaknesses
CWE-276

Affected products

  • intel / atom_c3308
  • intel / atom_c3336
  • intel / atom_c3338
  • intel / atom_c3338r
  • intel / atom_c3436l
  • intel / atom_c3508

Showing 6 representative product identities from 681 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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