# CVE-2015-6311: Denial of service in n/a

> Remote attackers can cause a denial of service on Cisco Wireless LAN Controllers by sending malformed 802.11i management data to managed access points.

- **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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Oct 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-v3p4-x5x8-8pm8

## What is CVE-2015-6311?

CVE-2015-6311 is a medium-severity denial of service vulnerability in n/a, published on 8 Oct 2015. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Cisco Wireless LAN Controller (WLC) devices with software 7.0(240.0), 7.3(101.0), and 7.4(1.19) allow remote attackers to cause a denial of service (device outage) by sending malformed 802.11i management data to a managed access point, aka Bug ID CSCub65236.

Weakness: CWE-399

## Which versions are affected by CVE-2015-6311?

It affects 1 product.


Products: Cisco Wireless Lan Controller.

## How do I fix CVE-2015-6311?

No fix has been published for CVE-2015-6311 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-6311 being exploited?

There is no known exploitation of CVE-2015-6311 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2014-0703](https://insights.sbomify.com/CVE-2014-0703/): Race condition in n/a (critical 10.0)
- [CVE-2014-0706](https://insights.sbomify.com/CVE-2014-0706/): Cisco Wireless LAN Controller (WLC) devices 7.2 before 7.2.115.2, 7.3, and 7.4 before 7.4.110.0 allow remote attackers to cause a denial of (high 7.8)
- [CVE-2014-0707](https://insights.sbomify.com/CVE-2014-0707/): Cisco Wireless LAN Controller (WLC) devices 7.2, 7.3, and 7.4 before 7.4.110.0 allow remote attackers to cause a denial of service (device r (high 7.8)
- [CVE-2018-0417](https://insights.sbomify.com/CVE-2018-0417/): Cisco Wireless LAN Controller Software GUI Privilege Escalation Vulnerability (high 7.5)
- [CVE-2019-1796](https://insights.sbomify.com/CVE-2019-1796/): Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabilities (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-6311 and fix it if it is affected.

What it is: CVE-2015-6311 is a medium-severity denial of service vulnerability in n/a, published on 8 Oct 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-6311 in the wild and no public exploit code.

Affected product: n/a. 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-2015-6311/ (Markdown: https://insights.sbomify.com/CVE-2015-6311/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-6311
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-6311
- OSV: https://osv.dev/vulnerability/CVE-2015-6311

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-6311/
Summaries are generated and may contain mistakes; the official description above is the record.