CVE-2023-1968: Illumina Iscan Firmware

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

Instruments with Illumina Universal Copy Service v2.x are vulnerable due to binding to an unrestricted IP address. An unauthenticated malicious actor could use UCS to listen on all IP addresses, including those capable of accepting remote communications.

Affected products

• Illumina Iscan Firmware: version 4.0.0 only; version 4.0.5 only
• Illumina Iseq 100 Firmware: any version
• Illumina Miniseq Firmware: from 2.0
• Illumina Miseq Firmware: from 4.0
• Illumina Miseqdx Firmware: from 4.0.1; version 4.0 only
• Illumina Nextseq 1000 Firmware: version 1.4.1 only
• Illumina Nextseq 2000 Firmware: version 1.4.1 only
• Illumina Nextseq 500 Firmware: version 4.0 only
• Illumina Nextseq 550 Firmware: version 4.0 only
• Illumina Nextseq 550dx Firmware: from 1.0.0, up to and including 1.3.1; from 1.3.3; version 4.0 only
• Illumina Novaseq 6000 Firmware: up to and including 1.7; version 1.8 only

Published 2023-04-28. Last modified 2026-06-17.