# CVE-2023-47674: Missing authorization in CFR-1004EA, CFR-1008EA, CFR-1016EA

> Remote unauthenticated attackers can rewrite or obtain configuration information on First Corporation DVRs due to missing authentication for critical functions.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Nov 2023
- **Updated:** 11 Jun 2025
- **Also known as:** GHSA-h9h6-5vxm-9xx3

## What is CVE-2023-47674?

CVE-2023-47674 is a critical missing authorization vulnerability in First Co., Ltd. CFR-1004EA, CFR-1008EA, CFR-1016EA, published on 16 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Missing authentication for critical function vulnerability in First Corporation's DVRs allows a remote unauthenticated attacker to rewrite or obtain the configuration information of the affected device. Note that updates are provided only for Late model of CFR-4EABC, CFR-4EAB, CFR-8EAB, CFR-16EAB, MD-404AB, and MD-808AB. As for the other products, apply the workaround.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2023-47674?

It affects 28 products.


Products: C-First Cfr-1004ea Firmware, C-First Cfr-1008ea Firmware, C-First Cfr-1016ea Firmware, C-First Cfr-16eaa Firmware, C-First Cfr-16eab Firmware, C-First Cfr-16eha Firmware, C-First Cfr-16ehd Firmware, C-First Cfr-4eaa Firmware, C-First Cfr-4eaam Firmware, C-First Cfr-4eab Firmware, C-First Cfr-4eabc Firmware, C-First Cfr-4eha Firmware, C-First Cfr-4ehd Firmware, C-First Cfr-8eaa Firmware, C-First Cfr-8eab Firmware, C-First Cfr-8eha Firmware, C-First Cfr-8ehd Firmware, C-First Cfr-904e Firmware, C-First Cfr-908e Firmware, C-First Cfr-916e Firmware and 8 more.

## How do I fix CVE-2023-47674?

No fix has been published for CVE-2023-47674 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-47674 being exploited?

There is no known exploitation of CVE-2023-47674 in the wild and no public exploit code.

## Other vulnerabilities in First Co., Ltd. CFR-1004EA, CFR-1008EA, CFR-1016EA

- [CVE-2023-47213](https://insights.sbomify.com/CVE-2023-47213/): Hardcoded credentials in CFR-1004EA, CFR-1008EA, CFR-1016EA (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-47674 and fix it if it is affected.

What it is: CVE-2023-47674 is a critical missing authorization vulnerability in First Co., Ltd. CFR-1004EA, CFR-1008EA, CFR-1016EA, published on 16 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-47674 in the wild and no public exploit code.

Affected product: First Co., Ltd. CFR-1004EA, CFR-1008EA, CFR-1016EA. 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-2023-47674/ (Markdown: https://insights.sbomify.com/CVE-2023-47674/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-47674
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-47674
- OSV: https://osv.dev/vulnerability/CVE-2023-47674

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-47674/
Summaries are generated and may contain mistakes; the official description above is the record.