# CVE-2018-0137: Denial of service in Cisco Prime Network

> Unauthenticated remote attackers can cause denial of service on Cisco Prime Network by flooding TCP SYN packets, exhausting memory and blocking new connections.

- **Severity:** High 8.6 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/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:** 8 Feb 2018
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-8246-87gc-pmxf

## What is CVE-2018-0137?

CVE-2018-0137 is a high-severity denial of service vulnerability in Cisco Prime Network, published on 8 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the TCP throttling process of Cisco Prime Network could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate limiting protection for TCP listening ports. An attacker could exploit this vulnerability by sending the affected device a high rate of TCP SYN packets to the local IP address of the targeted application. A successful exploit could allow the attacker to cause the device to consume a high amount of memory and become slow, or to stop accepting new TCP connections to the application. Cisco Bug IDs: CSCvg48152.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling), CWE-399

## Which versions are affected by CVE-2018-0137?

It affects 1 product.


Products: Cisco Prime Network.

## How do I fix CVE-2018-0137?

No fix has been published for CVE-2018-0137 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0137 being exploited?

There is no known exploitation of CVE-2018-0137 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Prime Network

- [CVE-2017-6732](https://insights.sbomify.com/CVE-2017-6732/): Privilege escalation in Cisco Prime Network (medium 6.7)
- [CVE-2017-6726](https://insights.sbomify.com/CVE-2017-6726/): Information disclosure in Cisco Prime Network Gateway (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0137 and fix it if it is affected.

What it is: CVE-2018-0137 is a high-severity denial of service vulnerability in Cisco Prime Network, published on 8 Feb 2018. 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-2018-0137 in the wild and no public exploit code.

Affected product: Cisco Prime Network. 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-2018-0137/ (Markdown: https://insights.sbomify.com/CVE-2018-0137/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0137
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0137
- OSV: https://osv.dev/vulnerability/CVE-2018-0137

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0137/
Summaries are generated and may contain mistakes; the official description above is the record.