# CVE-2014-7188: Information disclosure in n/a

> Local HVM guests can crash the host or read hypervisor data due to improper MSR range handling in Xen x2APIC emulation.

- **Severity:** High 8.3 (`AV:A/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 2 Oct 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-7188, GHSA-7j5g-cw5c-pc6m, UBUNTU-CVE-2014-7188

## What is CVE-2014-7188?

CVE-2014-7188 is a high-severity vulnerability in Xen Xen, published on 2 Oct 2014. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.

Weakness: CWE-399

## Which versions are affected by CVE-2014-7188?

It affects 1 product.


Products: Xen Xen.

## How do I fix CVE-2014-7188?

Apply the vendor's patch.

## Is CVE-2014-7188 being exploited?

There is no known exploitation of CVE-2014-7188 in the wild and no public exploit code.

## Other vulnerabilities in Xen Xen

- [CVE-2017-10912](https://insights.sbomify.com/CVE-2017-10912/): Privilege escalation in n/a (critical 10.0)
- [CVE-2017-10918](https://insights.sbomify.com/CVE-2017-10918/): Memory corruption in n/a (critical 10.0)
- [CVE-2017-10920](https://insights.sbomify.com/CVE-2017-10920/): Memory corruption in n/a (critical 10.0)
- [CVE-2017-10921](https://insights.sbomify.com/CVE-2017-10921/): Memory corruption in n/a (critical 10.0)
- [CVE-2025-27466](https://insights.sbomify.com/CVE-2025-27466/): Mutiple vulnerabilities in the Viridian interface (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-7188 and fix it if it is affected.

What it is: CVE-2014-7188 is a high-severity vulnerability in Xen Xen, published on 2 Oct 2014. 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-2014-7188 in the wild and no public exploit code.

Affected product: Xen Xen. 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-2014-7188/ (Markdown: https://insights.sbomify.com/CVE-2014-7188/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-7188
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-7188
- OSV: https://osv.dev/vulnerability/CVE-2014-7188

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-7188/
Summaries are generated and may contain mistakes; the official description above is the record.