# CVE-2013-7331: Microsoft Internet Explorer Information Disclosure

> Remote attackers can determine local and intranet pathnames and hostnames via error codes in the Microsoft.XMLDOM ActiveX control.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L`)
- **Exploited in the wild:** Yes, since 25 May 2022 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Feb 2014
- **Updated:** 22 Oct 2025
- **Also known as:** GHSA-fprc-fr29-2qmp

## What is CVE-2013-7331?

CVE-2013-7331 is a medium-severity vulnerability in Microsoft Internet Explorer, published on 26 Feb 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Microsoft.XMLDOM ActiveX control in Microsoft Windows 8.1 and earlier allows remote attackers to determine the existence of local pathnames, UNC share pathnames, intranet hostnames, and intranet IP addresses by examining error codes, as demonstrated by a res:// URL, and exploited in the wild in February 2014.

Weakness: CWE-209 (Generation of Error Message Containing Sensitive Information)

## Which versions are affected by CVE-2013-7331?

It affects 1 product.


Products: Microsoft Internet Explorer.

## How do I fix CVE-2013-7331?

No fix has been published for CVE-2013-7331 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 15 Jun 2022.

## Is CVE-2013-7331 being exploited?

Yes. Attackers have exploited CVE-2013-7331 in the wild since at least 25 May 2022.

Public exploit code:

- MS14-052 Microsoft Internet Explorer XMLDOM Filename Disclosure (metasploit)

## Other vulnerabilities in Microsoft Internet Explorer

- [CVE-2014-1776](https://insights.sbomify.com/CVE-2014-1776/): Microsoft Internet Explorer Memory Corruption (critical 9.8, exploited in the wild)
- [CVE-2021-27085](https://insights.sbomify.com/CVE-2021-27085/): Microsoft Internet Explorer Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2017-0222](https://insights.sbomify.com/CVE-2017-0222/): Microsoft Internet Explorer Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2017-0210](https://insights.sbomify.com/CVE-2017-0210/): Microsoft Internet Explorer Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2017-0149](https://insights.sbomify.com/CVE-2017-0149/): Microsoft Internet Explorer Memory Corruption (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-7331 and fix it if it is affected.

What it is: CVE-2013-7331 is a medium-severity vulnerability in Microsoft Internet Explorer, published on 26 Feb 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2013-7331 in the wild since at least 25 May 2022.

Affected product: Microsoft Internet Explorer. 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-2013-7331/ (Markdown: https://insights.sbomify.com/CVE-2013-7331/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-7331
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-7331
- OSV: https://osv.dev/vulnerability/CVE-2013-7331

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From sbomify Insights: https://insights.sbomify.com/CVE-2013-7331/
Summaries are generated and may contain mistakes; the official description above is the record.