# CVE-2015-6277: Denial of service in n/a

> Remote attackers can cause a denial of service by sending crafted packet headers to Cisco Nexus devices, requiring vendor patches.

- **Severity:** Medium 6.1 (`AV:A/AC:L/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:** 2 Sep 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-mgmf-hg59-85fw

## What is CVE-2015-6277?

CVE-2015-6277 is a medium-severity denial of service vulnerability in Cisco Nx-Os, published on 2 Sep 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The ARP implementation in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 5.2(1)SV3(1.4), Nexus 3000 devices 7.3(0)ZD(0.47), Nexus 4000 devices 4.1(2)E1, Nexus 9000 devices 7.3(0)ZD(0.61), and MDS 9000 devices 7.0(0)HSK(0.353) and SAN-OS NX-OS on MDS 9000 devices 7.0(0)HSK(0.353) allows remote attackers to cause a denial of service (ARP process restart) via crafted packet-header fields, aka Bug ID CSCut25292.

Weakness: CWE-399

## Which versions are affected by CVE-2015-6277?

It affects 4 products.


Products: Cisco 1000v, Cisco Mds 9000, Cisco Nx-Os, Cisco San-Os.

## How do I fix CVE-2015-6277?

No fix has been published for CVE-2015-6277 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-6277 being exploited?

There is no known exploitation of CVE-2015-6277 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-6277 and fix it if it is affected.

What it is: CVE-2015-6277 is a medium-severity denial of service vulnerability in Cisco Nx-Os, published on 2 Sep 2015. 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-2015-6277 in the wild and no public exploit code.

Affected product: Cisco Nx-Os. 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-2015-6277/ (Markdown: https://insights.sbomify.com/CVE-2015-6277/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-6277
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-6277
- OSV: https://osv.dev/vulnerability/CVE-2015-6277

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-6277/
Summaries are generated and may contain mistakes; the official description above is the record.