# CVE-2012-4136: Information disclosure in n/a

> Remote attackers can access sensitive information or cause denial of service via Telnet due to improper service binding in Cisco UCS Fabric Interconnect.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Oct 2013
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-w6cc-rj4f-m65f

## What is CVE-2012-4136?

CVE-2012-4136 is a medium-severity vulnerability in Cisco Unified Computing System, published on 3 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The high-availability service in the Fabric Interconnect component in Cisco Unified Computing System (UCS) does not properly bind the cluster service to the management interface, which allows remote attackers to obtain sensitive information or cause a denial of service (peer-syncing outage) via a TELNET connection, aka Bug ID CSCtz72910.

Weakness: CWE-264

## Which versions are affected by CVE-2012-4136?

It affects 1 product.


Products: Cisco Unified Computing System.

## How do I fix CVE-2012-4136?

No fix has been published for CVE-2012-4136 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-4136 being exploited?

There is no known exploitation of CVE-2012-4136 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Computing System

- [CVE-2026-20200](https://insights.sbomify.com/CVE-2026-20200/): Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability (high 8.8)
- [CVE-2026-20094](https://insights.sbomify.com/CVE-2026-20094/): Cisco Integrated Management Controller Command Injection Vulnerability (high 8.8)
- [CVE-2018-0430](https://insights.sbomify.com/CVE-2018-0430/): Cisco Integrated Management Controller Command Injection Vulnerability (high 8.8)
- [CVE-2018-0431](https://insights.sbomify.com/CVE-2018-0431/): Cisco Integrated Management Controller Command Injection Vulnerability (high 8.8)
- [CVE-2012-4078](https://insights.sbomify.com/CVE-2012-4078/): Auth bypass in n/a (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-4136 and fix it if it is affected.

What it is: CVE-2012-4136 is a medium-severity vulnerability in Cisco Unified Computing System, published on 3 Oct 2013. 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-2012-4136 in the wild and no public exploit code.

Affected product: Cisco Unified Computing System. 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-2012-4136/ (Markdown: https://insights.sbomify.com/CVE-2012-4136/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-4136
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-4136
- OSV: https://osv.dev/vulnerability/CVE-2012-4136

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From sbomify Insights: https://insights.sbomify.com/CVE-2012-4136/
Summaries are generated and may contain mistakes; the official description above is the record.