# CVE-2025-46789: Zoom Clients for Windows - Classic Buffer Overflow

> An authorized user can cause a denial of service in Zoom Windows clients via a classic buffer overflow.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jul 2025
- **Updated:** 10 Jul 2025
- **Also known as:** GHSA-3pc8-q9qj-vmvc

## What is CVE-2025-46789?

CVE-2025-46789 is a medium-severity memory corruption vulnerability in Zoom Zoom, published on 10 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial of service via network access.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2025-46789?

It affects 1 product.


Products: Zoom Zoom.

## How do I fix CVE-2025-46789?

No fix has been published for CVE-2025-46789 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-46789 being exploited?

There is no known exploitation of CVE-2025-46789 in the wild and no public exploit code.

## Other vulnerabilities in Zoom Zoom

- [CVE-2018-15715](https://insights.sbomify.com/CVE-2018-15715/): Missing authorization in Zoom (critical 9.8)
- [CVE-2023-39216](https://insights.sbomify.com/CVE-2023-39216/): Cross-site scripting in Zoom Desktop Client for Windows (critical 9.6)
- [CVE-2023-36534](https://insights.sbomify.com/CVE-2023-36534/): Path traversal in Zoom Desktop Client for Windows (critical 9.3)
- [CVE-2019-13567](https://insights.sbomify.com/CVE-2019-13567/): Command injection in n/a (high 8.8)
- [CVE-2017-15048](https://insights.sbomify.com/CVE-2017-15048/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-46789 and fix it if it is affected.

What it is: CVE-2025-46789 is a medium-severity memory corruption vulnerability in Zoom Zoom, published on 10 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-46789 in the wild and no public exploit code.

Affected product: Zoom Zoom. 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-2025-46789/ (Markdown: https://insights.sbomify.com/CVE-2025-46789/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-46789
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-46789
- OSV: https://osv.dev/vulnerability/CVE-2025-46789

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-46789/
Summaries are generated and may contain mistakes; the official description above is the record.