# CVE-2014-2124: Denial of service in n/a

> Remote attackers can crash Cisco Catalyst 6500 devices with Supervisor Engine 2T by sending crafted multicast packets, causing a denial of service.

- **Severity:** High 7.1 (`AV:N/AC:M/Au:N/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Mar 2014
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-f77j-4prj-h765

## What is CVE-2014-2124?

CVE-2014-2124 is a high-severity denial of service vulnerability in Cisco Ios, published on 20 Mar 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cisco IOS 15.1(2)SY3 and earlier, when used with Supervisor Engine 2T (aka Sup2T) on Catalyst 6500 devices, allows remote attackers to cause a denial of service (device crash) via crafted multicast packets, aka Bug ID CSCuf60783.

Weakness: CWE-399

## Which versions are affected by CVE-2014-2124?

It affects 2 products.


Products: Cisco Catalyst 6500, Cisco Ios.

## How do I fix CVE-2014-2124?

No fix has been published for CVE-2014-2124 yet. Limit exposure of the affected software until one is available.

## Is CVE-2014-2124 being exploited?

There is no known exploitation of CVE-2014-2124 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Ios

- [CVE-2011-3296](https://insights.sbomify.com/CVE-2011-3296/): Memory corruption in n/a (high 7.8)
- [CVE-2011-3297](https://insights.sbomify.com/CVE-2011-3297/): Denial of service in n/a (high 7.8)
- [CVE-2007-5134](https://insights.sbomify.com/CVE-2007-5134/): Misconfiguration in n/a (medium 5.0)
- [CVE-2003-1001](https://insights.sbomify.com/CVE-2003-1001/): Memory corruption in n/a (medium 5.0)
- [CVE-2003-1002](https://insights.sbomify.com/CVE-2003-1002/): Denial of service in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-2124 and fix it if it is affected.

What it is: CVE-2014-2124 is a high-severity denial of service vulnerability in Cisco Ios, published on 20 Mar 2014. 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-2014-2124 in the wild and no public exploit code.

Affected product: Cisco Ios. 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-2014-2124/ (Markdown: https://insights.sbomify.com/CVE-2014-2124/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-2124
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-2124
- OSV: https://osv.dev/vulnerability/CVE-2014-2124

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-2124/
Summaries are generated and may contain mistakes; the official description above is the record.