CVE-2023-1966

Name: CVE-2023-1966
Creator: NVD / NIST
Published: 2023-04-28T19:15:16.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2023-1966 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. . EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Illumina	Iscan Firmware	4.0.0
Illumina	Iscan Firmware	4.0.5
Illumina	Iseq 100 Firmware	All versions
Illumina	Miniseq Firmware	>= 2.0
Illumina	Miseq Firmware	>= 4.0
Illumina	Miseqdx Firmware	>= 4.0.1
Illumina	Miseqdx Firmware	4.0
Illumina	Nextseq 500 Firmware	4.0
Illumina	Nextseq 550 Firmware	4.0
Illumina	Nextseq 550dx Firmware	>= 1.0.0, <= 1.3.1
Illumina	Nextseq 550dx Firmware	>= 1.3.3
Illumina	Nextseq 550dx Firmware	4.0
Illumina	Nextseq 1000 Firmware	1.4.1
Illumina	Nextseq 2000 Firmware	1.4.1
Illumina	Novaseq 6000 Firmware	<= 1.7
Illumina	Novaseq 6000 Firmware	1.8

References

https://support.illumina.com/downloads/illumina-universal-copy-service-1-0.htmlVendor Advisory
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-23-117-01Third Party Advisory, US Government Resource
https://support.illumina.com/downloads/illumina-universal-copy-service-1-0.htmlVendor Advisory
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-23-117-01Third Party Advisory, US Government Resource

Timeline

Published: Apr 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1966?

How severe is CVE-2023-1966?

CVE-2023-1966 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1966?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1966?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST