# CVE-2025-47900: RCE on backup configuration password

> An OS command injection vulnerability in Microchip Time Provider 4100 allows attackers to execute arbitrary code via the backup configuration password.

- **Severity:** High 8.9 (`CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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:** 20 Oct 2025
- **Updated:** 31 Mar 2026
- **Also known as:** GHSA-v89w-3c42-rprg

## What is CVE-2025-47900?

CVE-2025-47900 is a high-severity command injection vulnerability in Microchip Time Provider 4100, published on 20 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Microchip Time Provider 4100 allows OS Command Injection.This issue affects Time Provider 4100: before 2.5.

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

## Which versions are affected by CVE-2025-47900?

It affects 1 product.


Products: Microchip Timeprovider 4100 Firmware.

## How do I fix CVE-2025-47900?

No fix has been published for CVE-2025-47900 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-47900 being exploited?

There is no known exploitation of CVE-2025-47900 in the wild and no public exploit code.

## Other vulnerabilities in Microchip Time Provider 4100

- [CVE-2025-47901](https://insights.sbomify.com/CVE-2025-47901/): RCE on restore configuration password (high 8.9)
- [CVE-2024-43683](https://insights.sbomify.com/CVE-2024-43683/): Improper verification of the Host header in TimeProvider 4100 (high 8.7)
- [CVE-2024-43684](https://insights.sbomify.com/CVE-2024-43684/): Cross-Site Request Forgery vulnerability in TimeProvider 4100 (high 8.7)
- [CVE-2024-43685](https://insights.sbomify.com/CVE-2024-43685/): Session token fixation in TimeProvider 4100 (high 8.7)
- [CVE-2024-9054](https://insights.sbomify.com/CVE-2024-9054/): Remote code Execution inTimeProvider® 4100 (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-47900 and fix it if it is affected.

What it is: CVE-2025-47900 is a high-severity command injection vulnerability in Microchip Time Provider 4100, published on 20 Oct 2025. 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-2025-47900 in the wild and no public exploit code.

Affected product: Microchip Time Provider 4100. 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-2025-47900/ (Markdown: https://insights.sbomify.com/CVE-2025-47900/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-47900
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-47900
- OSV: https://osv.dev/vulnerability/CVE-2025-47900

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-47900/
Summaries are generated and may contain mistakes; the official description above is the record.