# CVE-2023-23110: Other in n/a

> Attackers can modify firmware images via MITM attacks due to weak checksum verification, potentially leading to code execution on affected Netgear devices.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/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:** 2 Feb 2023
- **Updated:** 26 Mar 2025
- **Also known as:** GHSA-6fpf-rgcx-jmrx

## What is CVE-2023-23110?

CVE-2023-23110 is a high-severity vulnerability in Netgear D6100 Firmware, published on 2 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An exploitable firmware modification vulnerability was discovered in certain Netgear products. The data integrity of the uploaded firmware image is ensured with a fixed checksum number. Therefore, an attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the checksum verification. This affects WNR612v2 Wireless Routers 1.0.0.3 and earlier, DGN1000v3 Modem Router 1.0.0.22 and earlier, D6100 WiFi DSL Modem Routers 1.0.0.63 and earlier, WNR1000v2 Wireless Routers 1.1.2.60 and earlier, XAVN2001v2 Wireless-N Extenders 0.4.0.7 and earlier, WNR2200 Wireless Routers 1.0.1.102 and earlier, WNR2500 Wireless Routers 1.0.0.34 and earlier, R8900 Smart WiFi Routers 1.0.3.6 and earlier, and R9000 Smart WiFi Routers 1.0.3.6 and earlier.

Weakness: CWE-494 (Download of Code Without Integrity Check)

## Which versions are affected by CVE-2023-23110?

It affects 9 products.


Products: Netgear D6100 Firmware, Netgear Dgn1000v3 Firmware, Netgear R8900 Firmware, Netgear R9000 Firmware, Netgear Wnr1000v2 Firmware, Netgear Wnr2200 Firmware, Netgear Wnr2500 Firmware, Netgear Wnr612v2 Firmware, Netgear Xavn2001v2 Firmware.

## How do I fix CVE-2023-23110?

No fix has been published for CVE-2023-23110 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23110 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23110 exists.

## Other vulnerabilities in Netgear D6100 Firmware

- [CVE-2016-10174](https://insights.sbomify.com/CVE-2016-10174/): NETGEAR WNR2000v5 Router Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2018-21208](https://insights.sbomify.com/CVE-2018-21208/): Command injection in n/a (high 8.8)
- [CVE-2017-18764](https://insights.sbomify.com/CVE-2017-18764/): Command injection in n/a (high 8.8)
- [CVE-2018-21113](https://insights.sbomify.com/CVE-2018-21113/): Command injection in n/a (high 8.8)
- [CVE-2017-18776](https://insights.sbomify.com/CVE-2017-18776/): Auth bypass in n/a (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23110 and fix it if it is affected.

What it is: CVE-2023-23110 is a high-severity vulnerability in Netgear D6100 Firmware, published on 2 Feb 2023. 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-2023-23110 exists.

Affected product: Netgear D6100 Firmware. 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-2023-23110/ (Markdown: https://insights.sbomify.com/CVE-2023-23110/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23110
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23110
- OSV: https://osv.dev/vulnerability/CVE-2023-23110

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23110/
Summaries are generated and may contain mistakes; the official description above is the record.