# CVE-2021-45641: Misconfiguration in n/a > Incorrect security settings in NETGEAR router firmware allow attackers to bypass security controls, requiring firmware updates. - **Severity:** Medium 4.6 (`CVSS:3.1/AC:L/AV:A/A:N/C:L/I:L/PR:L/S:U/UI:N`) - **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:** 26 Dec 2021 - **Updated:** 4 Aug 2024 - **Also known as:** GHSA-9j28-327w-4vrh ## What is CVE-2021-45641? CVE-2021-45641 is a medium-severity vulnerability in Netgear D3600 Firmware, published on 26 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D3600 before 1.0.0.72, D6000 before 1.0.0.72, D6200 before 1.1.00.34, D6220 before 1.0.0.52, D6400 before 1.0.0.86, D7000 before 1.0.1.74, D7000v2 before 1.0.0.53, D7800 before 1.0.1.56, D8500 before 1.0.3.44, DC112A before 1.0.0.42, DGN2200Bv4 before 1.0.0.109, DGN2200v4 before 1.0.0.110, DM200 before 1.0.0.61, EX3700 before 1.0.0.76, EX3800 before 1.0.0.76, EX6120 before 1.0.0.46, EX6130 before 1.0.0.28, EX7000 before 1.0.1.78, PR2000 before 1.0.0.28, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6250 before 1.0.4.34, R6300v2 before 1.0.4.34, R6400 before 1.0.1.46, R6400v2 before 1.0.2.66, R6700v3 before 1.0.2.66, R6700 before 1.0.2.6, R6900 before 1.0.2.6, R7000 before 1.0.9.34, R7100LG before 1.0.0.50, R7500v2 before 1.0.3.40, R7900P before 1.4.1.50, R8000P before 1.4.1.50, R8900 before 1.0.4.12, R9000 before 1.0.4.12, RBK20 before 2.3.0.28, RBR20 before 2.3.0.28, RBS20 before 2.3.0.28, RBK40 before 2.3.0.28, RBR40 before 2.3.0.28, RBS40 before 2.3.0.28, RBK50 before 2.3.0.32, RBR50 before 2.3.0.32, RBS50 before 2.3.0.32, WN3000RPv2 before 1.0.0.78, WNDR3400v3 before 1.0.1.24, WNR2000v5 before 1.0.0.70, WNR2020 before 1.1.0.62, and XR500 before 2.3.2.56. ## Which versions are affected by CVE-2021-45641? It affects 49 products. Products: Netgear D3600 Firmware, Netgear D6000 Firmware, Netgear D6200 Firmware, Netgear D6220 Firmware, Netgear D6400 Firmware, Netgear D7000 Firmware, Netgear D7000v2 Firmware, Netgear D7800 Firmware, Netgear D8500 Firmware, Netgear Dc112a Firmware, Netgear Dgn2200bv4 Firmware, Netgear Dgn2200v4 Firmware, Netgear Dm200 Firmware, Netgear Ex3700 Firmware, Netgear Ex3800 Firmware, Netgear Ex6120 Firmware, Netgear Ex6130 Firmware, Netgear Ex7000 Firmware, Netgear Pr2000 Firmware, Netgear R6220 Firmware and 29 more. ## How do I fix CVE-2021-45641? No fix has been published for CVE-2021-45641 yet. Limit exposure of the affected software until one is available. ## Is CVE-2021-45641 being exploited? There is no known exploitation of CVE-2021-45641 in the wild and no public exploit code. ## Other vulnerabilities in Netgear D3600 Firmware - [CVE-2020-35799](https://insights.sbomify.com/CVE-2020-35799/): Memory corruption in n/a (high 8.8) - [CVE-2018-21207](https://insights.sbomify.com/CVE-2018-21207/): Memory corruption in n/a (high 8.8) - [CVE-2018-21210](https://insights.sbomify.com/CVE-2018-21210/): Memory corruption in n/a (high 8.8) - [CVE-2018-21211](https://insights.sbomify.com/CVE-2018-21211/): Memory corruption in n/a (high 8.8) - [CVE-2018-21212](https://insights.sbomify.com/CVE-2018-21212/): Memory corruption in n/a (high 8.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2021-45641 and fix it if it is affected. What it is: CVE-2021-45641 is a medium-severity vulnerability in Netgear D3600 Firmware, published on 26 Dec 2021. 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-2021-45641 in the wild and no public exploit code. Affected product: Netgear D3600 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-2021-45641/ (Markdown: https://insights.sbomify.com/CVE-2021-45641/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45641 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45641 - OSV: https://osv.dev/vulnerability/CVE-2021-45641 --- From sbomify Insights: https://insights.sbomify.com/CVE-2021-45641/ Summaries are generated and may contain mistakes; the official description above is the record.