# CVE-2019-3735: Privilege escalation in Dell SupportAssist for Business PCs

> A local attacker can gain system privileges by exploiting an improper privilege management flaw in Dell SupportAssist via a leaked thread handle.

- **Severity:** High 7.0 (`CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** No
- **Published:** 20 Jun 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-mhgq-rp37-738w

## What is CVE-2019-3735?

CVE-2019-3735 is a high-severity vulnerability in Dell SupportAssist for Business PCs, published on 20 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Dell SupportAssist for Business PCs version 2.0 and Dell SupportAssist for Home PCs version 2.2, 2.2.1, 2.2.2, 2.2.3, 3.0, 3.0.1, 3.0.2, 3.1, 3.2, and 3.2.1 contain an Improper Privilege Management Vulnerability. A malicious local user can exploit this vulnerability by inheriting a system thread using a leaked thread handle to gain system privileges on the affected machine.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2019-3735?

It affects 2 products.


Products: Dell Supportassist for Business Pcs, Dell Supportassist for Home Pcs.

## How do I fix CVE-2019-3735?

No fix has been published for CVE-2019-3735 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3735 being exploited?

There is no known exploitation of CVE-2019-3735 in the wild and no public exploit code.

## Other vulnerabilities in Dell SupportAssist for Business PCs

- [CVE-2022-29095](https://insights.sbomify.com/CVE-2022-29095/): Cross-site scripting in SupportAssist Consumer (high 8.3)
- [CVE-2023-44283](https://insights.sbomify.com/CVE-2023-44283/): Privilege escalation in SupportAssist for Business PCs (high 7.8)
- [CVE-2022-29092](https://insights.sbomify.com/CVE-2022-29092/): Privilege escalation in SupportAssist Consumer (high 7.8)
- [CVE-2020-5316](https://insights.sbomify.com/CVE-2020-5316/): Other in Dell SupportAssist Client (high 7.8)
- [CVE-2019-12280](https://insights.sbomify.com/CVE-2019-12280/): Path traversal in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3735 and fix it if it is affected.

What it is: CVE-2019-3735 is a high-severity vulnerability in Dell SupportAssist for Business PCs, published on 20 Jun 2019. 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-2019-3735 in the wild and no public exploit code.

Affected product: Dell SupportAssist for Business PCs. 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-2019-3735/ (Markdown: https://insights.sbomify.com/CVE-2019-3735/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3735
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3735
- OSV: https://osv.dev/vulnerability/CVE-2019-3735

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3735/
Summaries are generated and may contain mistakes; the official description above is the record.