# CVE-2019-15990: Cisco Small Business Routers RV016, RV042, RV042G, and RV082 Information Disclosure Vulnerability

> Unauthenticated remote attackers can view sensitive information in the web management interface of Cisco Small Business Routers due to improper authorization.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Nov 2019
- **Updated:** 19 Nov 2024
- **Also known as:** GHSA-89q8-rgqc-jpf8

## What is CVE-2019-15990?

CVE-2019-15990 is a medium-severity missing authorization vulnerability in Cisco Small Business RV Series Router Firmware, published on 26 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an unauthenticated, remote attacker to view information displayed in the web-based management interface. The vulnerability is due to improper authorization of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to view information displayed in the web-based management interface without authentication.

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2019-15990?

It affects 4 products.


Products: Cisco Rv016 Multi-Wan Vpn Firmware, Cisco Rv042 Dual Wan Vpn Firmware, Cisco Rv042g Dual Gigabit Wan Vpn Firmware, Cisco Rv082 Dual Wan Vpn Firmware.

## How do I fix CVE-2019-15990?

No fix has been published for CVE-2019-15990 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-15990 being exploited?

There is no known exploitation of CVE-2019-15990 in the wild and no public exploit code.

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

- [CVE-2019-15271](https://insights.sbomify.com/CVE-2019-15271/): Cisco RV Series Routers Deserialization of Untrusted Data (high 8.8, exploited in the wild)
- [CVE-2019-15957](https://insights.sbomify.com/CVE-2019-15957/): Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Command Injection Vulnerability (high 7.2)
- [CVE-2015-6418](https://insights.sbomify.com/CVE-2015-6418/): Weak cryptography in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-15990 and fix it if it is affected.

What it is: CVE-2019-15990 is a medium-severity missing authorization vulnerability in Cisco Small Business RV Series Router Firmware, published on 26 Nov 2019. 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-2019-15990 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-2019-15990/ (Markdown: https://insights.sbomify.com/CVE-2019-15990/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15990
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15990
- OSV: https://osv.dev/vulnerability/CVE-2019-15990

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-15990/
Summaries are generated and may contain mistakes; the official description above is the record.