# CVE-2023-1966: CVE-2023-1966

> Unauthenticated attackers can upload and execute code with elevated privileges on Illumina sequencing instruments, compromising system integrity and data.

- **Severity:** High 7.4 (`CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Apr 2023
- **Updated:** 16 Jan 2025
- **Also known as:** GHSA-v566-5q2w-h94w

## What is CVE-2023-1966?

CVE-2023-1966 is a high-severity vulnerability in Illumina  MiSeq Control Software, published on 28 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-269 (Improper Privilege Management), CWE-250 (Execution with Unnecessary Privileges)

## Which versions are affected by CVE-2023-1966?

It affects 11 products.


Products: Illumina Iscan Firmware, Illumina Iseq 100 Firmware, Illumina Miniseq Firmware, Illumina Miseq Firmware, Illumina Miseqdx Firmware, Illumina Nextseq 1000 Firmware, Illumina Nextseq 2000 Firmware, Illumina Nextseq 500 Firmware, Illumina Nextseq 550 Firmware, Illumina Nextseq 550dx Firmware, Illumina Novaseq 6000 Firmware.

## How do I fix CVE-2023-1966?

No fix has been published for CVE-2023-1966 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1966 being exploited?

There is no known exploitation of CVE-2023-1966 in the wild and no public exploit code.

## Other vulnerabilities in Illumina  MiSeq Control Software

- [CVE-2023-1968](https://insights.sbomify.com/CVE-2023-1968/): CVE-2023-1968 (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1966 and fix it if it is affected.

What it is: CVE-2023-1966 is a high-severity vulnerability in Illumina  MiSeq Control Software, published on 28 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-1966 in the wild and no public exploit code.

Affected product: Illumina  MiSeq Control Software. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-1966/ (Markdown: https://insights.sbomify.com/CVE-2023-1966/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1966
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1966
- OSV: https://osv.dev/vulnerability/CVE-2023-1966

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1966/
Summaries are generated and may contain mistakes; the official description above is the record.