CVE intelligence and bounded remediation

CVE-2023-1966 — Instruments with Illumina Universal Copy Service v1.x and v2.x contain an unnecessary privileges vulnerability

Critical CVSS 9.8

Instruments with Illumina Universal Copy Service v1.x and v2.x contain an unnecessary privileges vulnerability. An unauthenticated malicious actor could upload and execute code remotely at the operating system level, which could allow an attacker to change settings, configurations, software, or access sensitive data on the affected product.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-04-28
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-250, CWE-269

Affected products

  • illumina / iscan_firmware / 4.0.0
  • illumina / iscan_firmware / 4.0.5
  • illumina / iseq_100_firmware
  • illumina / miniseq_firmware
  • illumina / miseq_firmware
  • illumina / miseqdx_firmware

Showing 6 representative product identities from 16 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Privilege escalation and unsafe privilege management

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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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