# CVE-2018-8552: Information disclosure in Internet Explorer 10

> An information disclosure vulnerability in the Windows Scripting Engine allows attackers to read memory contents, potentially aiding further compromise of user data.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Nov 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5f59-wq77-4wm6

## What is CVE-2018-8552?

CVE-2018-8552 is a high-severity vulnerability in Microsoft Internet Explorer, published on 14 Nov 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka "Windows Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2018-8552?

It affects 1 product.


Products: Microsoft Internet Explorer.

## How do I fix CVE-2018-8552?

No fix has been published for CVE-2018-8552 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8552 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-8552 exists.

Public exploit code:

- VBScript - 'rtFilter' Out-of-Bounds Read (exploitdb)

## 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-2018-8552 and fix it if it is affected.

What it is: CVE-2018-8552 is a high-severity vulnerability in Microsoft Internet Explorer, published on 14 Nov 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-8552 exists.

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-2018-8552/ (Markdown: https://insights.sbomify.com/CVE-2018-8552/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8552
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8552
- OSV: https://osv.dev/vulnerability/CVE-2018-8552

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8552/
Summaries are generated and may contain mistakes; the official description above is the record.