# CVE-2025-27443: Zoom Workplace Apps for Windows - Insecure Default Variable Initialization

> An authenticated local user can compromise data integrity in Zoom Workplace Apps for Windows due to insecure default variable initialization.

- **Severity:** Low 2.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Apr 2025
- **Updated:** 8 Apr 2025
- **Also known as:** GHSA-rr38-x2xx-vwr5

## What is CVE-2025-27443?

CVE-2025-27443 is a low-severity vulnerability in Zoom Meeting Software Development Kit, published on 8 Apr 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Insecure default variable initialization in some Zoom Workplace Apps for Windows may allow an authenticated user to conduct a loss of integrity via local access.

Weakness: CWE-1188 (Initialization of a Resource with an Insecure Default)

## Which versions are affected by CVE-2025-27443?

It affects 4 products.


Products: Zoom Meeting Software Development Kit, Zoom Rooms, Zoom Rooms Controller, Zoom Workplace Desktop.

## How do I fix CVE-2025-27443?

No fix has been published for CVE-2025-27443 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-27443 being exploited?

There is no known exploitation of CVE-2025-27443 in the wild and no public exploit code.

## Other vulnerabilities in Zoom Meeting Software Development Kit

- [CVE-2025-49457](https://insights.sbomify.com/CVE-2025-49457/): Zoom Clients for Windows - Untrusted Search Path (critical 9.6)
- [CVE-2024-24691](https://insights.sbomify.com/CVE-2024-24691/): Privilege escalation in Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom Meeting SDK for Windows (critical 9.6)
- [CVE-2025-30663](https://insights.sbomify.com/CVE-2025-30663/): Zoom Workplace Apps - Time-of-check Time-of-use (high 8.8)
- [CVE-2025-0147](https://insights.sbomify.com/CVE-2025-0147/): Zoom Workplace App for Linux - Type Confusion (high 8.8)
- [CVE-2023-49647](https://insights.sbomify.com/CVE-2023-49647/): Zoom Desktop Client for Windows - Improper Access Control (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-27443 and fix it if it is affected.

What it is: CVE-2025-27443 is a low-severity vulnerability in Zoom Meeting Software Development Kit, published on 8 Apr 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-27443 in the wild and no public exploit code.

Affected product: Zoom Meeting Software Development Kit. 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-2025-27443/ (Markdown: https://insights.sbomify.com/CVE-2025-27443/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-27443
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27443
- OSV: https://osv.dev/vulnerability/CVE-2025-27443

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-27443/
Summaries are generated and may contain mistakes; the official description above is the record.