# CVE-2023-30280: Memory corruption in n/a

> Remote attackers can execute arbitrary code and cause denial of service via a buffer overflow in the fwSchedule.cgi page of Netgear routers.

- **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:** 26 Apr 2023
- **Updated:** 3 Feb 2025
- **Also known as:** GHSA-cpxf-jwx4-g38v

## What is CVE-2023-30280?

CVE-2023-30280 is a critical memory corruption vulnerability in Netgear R6700 Firmware, published on 26 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer Overflow vulnerability found in Netgear R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, R6700 v.1.0.0.26 allows a remote attacker to execute arbitrary code and cause a denial ofservice via the getInputData parameter of the fwSchedule.cgi page.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-30280?

It affects 2 products.


Products: Netgear R6700 Firmware, Netgear R6900 Firmware.

## How do I fix CVE-2023-30280?

No fix has been published for CVE-2023-30280 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-30280 being exploited?

There is no known exploitation of CVE-2023-30280 in the wild and no public exploit code.

## Other vulnerabilities in Netgear R6700 Firmware

- [CVE-2021-20173](https://insights.sbomify.com/CVE-2021-20173/): Command injection in Netgear Nighthawk R6700 (high 8.8)
- [CVE-2021-45732](https://insights.sbomify.com/CVE-2021-45732/): Hardcoded credentials in Netgear Nighthawk R6700 (high 8.8)
- [CVE-2020-15635](https://insights.sbomify.com/CVE-2020-15635/): Memory corruption in R6700 (high 8.8)
- [CVE-2020-10924](https://insights.sbomify.com/CVE-2020-10924/): Memory corruption in R6700 (high 8.8)
- [CVE-2020-10929](https://insights.sbomify.com/CVE-2020-10929/): Integer overflow in R6700 (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-30280 and fix it if it is affected.

What it is: CVE-2023-30280 is a critical memory corruption vulnerability in Netgear R6700 Firmware, published on 26 Apr 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-2023-30280 in the wild and no public exploit code.

Affected product: Netgear R6700 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-2023-30280/ (Markdown: https://insights.sbomify.com/CVE-2023-30280/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-30280
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-30280
- OSV: https://osv.dev/vulnerability/CVE-2023-30280

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-30280/
Summaries are generated and may contain mistakes; the official description above is the record.