# CVE-2021-1413: Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Authenticated Remote Code Execution Vulnerabilities

> Authenticated attackers can execute arbitrary code with elevated privileges on Cisco RV Series routers via crafted HTTP requests to the web interface.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2021
- **Updated:** 8 Nov 2024
- **Also known as:** GHSA-86q3-wgx4-qvjc

## What is CVE-2021-1413?

CVE-2021-1413 is a medium-severity unsafe deserialization vulnerability in Cisco Small Business RV Series Router Firmware, published on 8 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2021-1413?

It affects 4 products.


Products: Cisco Rv340 Firmware, Cisco Rv340w Firmware, Cisco Rv345 Firmware, Cisco Rv345p Firmware.

## How do I fix CVE-2021-1413?

No fix has been published for CVE-2021-1413 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-1413 being exploited?

There is no known exploitation of CVE-2021-1413 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Small Business RV Series Router Firmware

- [CVE-2022-20699](https://insights.sbomify.com/CVE-2022-20699/): Cisco Small Business RV Series Routers Stack-based Buffer Overflow (critical 10.0, exploited in the wild)
- [CVE-2022-20701](https://insights.sbomify.com/CVE-2022-20701/): Cisco Small Business RV Series Routers Stack-based Buffer Overflow (critical 10.0, exploited in the wild)
- [CVE-2022-20708](https://insights.sbomify.com/CVE-2022-20708/): Cisco Small Business RV Series Routers Stack-based Buffer Overflow (critical 10.0, exploited in the wild)
- [CVE-2022-20707](https://insights.sbomify.com/CVE-2022-20707/): Cisco Small Business RV Series Routers Vulnerabilities (critical 10.0)
- [CVE-2022-20709](https://insights.sbomify.com/CVE-2022-20709/): Cisco Small Business RV Series Routers Vulnerabilities (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-1413 and fix it if it is affected.

What it is: CVE-2021-1413 is a medium-severity unsafe deserialization vulnerability in Cisco Small Business RV Series Router Firmware, published on 8 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-1413 in the wild and no public exploit code.

Affected product: Cisco Small Business RV Series Router 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-2021-1413/ (Markdown: https://insights.sbomify.com/CVE-2021-1413/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1413
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1413
- OSV: https://osv.dev/vulnerability/CVE-2021-1413

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-1413/
Summaries are generated and may contain mistakes; the official description above is the record.