# CVE-2026-101076: Netcore NR289-GE CGI set_ntp_server_ip.cgi system os command injection

> Remote attackers can execute arbitrary OS commands via the ntp_ip argument in the CGI handler of Netcore NR289-GE routers.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Sep 2026
- **Updated:** 1 Oct 2026
- **Also known as:** GHSA-5577-c572-2j8c

## What is CVE-2026-101076?

CVE-2026-101076 is a critical command injection vulnerability in Netcore NR289-GE, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was detected in Netcore NR289-GE 1.4.5102. This affects the function system of the file /set_ntp_server_ip.cgi of the component CGI Handler. The manipulation of the argument ntp_ip results in os command injection. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-101076?


## How do I fix CVE-2026-101076?

No fix has been published for CVE-2026-101076 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-101076 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101076 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-101076 and fix it if it is affected.

What it is: CVE-2026-101076 is a critical command injection vulnerability in Netcore NR289-GE, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101076 exists.

Affected product: Netcore NR289-GE. 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-2026-101076/ (Markdown: https://insights.sbomify.com/CVE-2026-101076/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-101076
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-101076
- OSV: https://osv.dev/vulnerability/CVE-2026-101076

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-101076/
Summaries are generated and may contain mistakes; the official description above is the record.