# CVE-2022-22787: Insufficient hostname validation during Clusterswitch message in Zoom Client for Meetings

> Insufficient hostname validation allows attackers to redirect Zoom clients to malicious servers, potentially exposing user data.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L`)
- **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:** 18 May 2022
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-8jgr-9gc8-m8fm

## What is CVE-2022-22787?

CVE-2022-22787 is a medium-severity vulnerability in Zoom Client for Meetings for Android, published on 18 May 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly validate the hostname during a server switch request. This issue could be used in a more sophisticated attack to trick an unsuspecting users client to connect to a malicious server when attempting to use Zoom services.

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2022-22787?

It affects 1 product.


Products: Zoom Meetings.

## How do I fix CVE-2022-22787?

No fix has been published for CVE-2022-22787 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-22787 being exploited?

There is no known exploitation of CVE-2022-22787 in the wild and no public exploit code.

## Other vulnerabilities in Zoom Client for Meetings for Android

- [CVE-2021-33907](https://insights.sbomify.com/CVE-2021-33907/): Code injection in Zoom Client for Meetings for Windows (critical 9.8)
- [CVE-2022-28768](https://insights.sbomify.com/CVE-2022-28768/): Local Privilege Escalation in Zoom Client Installer for macOS (high 8.8)
- [CVE-2022-28763](https://insights.sbomify.com/CVE-2022-28763/): Improper URL parsing in Zoom Clients (high 8.8)
- [CVE-2022-28757](https://insights.sbomify.com/CVE-2022-28757/): Local Privilege Escalation in Auto Updater for Zoom Client for Meetings for macOS (high 8.8)
- [CVE-2022-28751](https://insights.sbomify.com/CVE-2022-28751/): Local Privilege Escalation in Zoom Client for Meetings for MacOS (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-22787 and fix it if it is affected.

What it is: CVE-2022-22787 is a medium-severity vulnerability in Zoom Client for Meetings for Android, published on 18 May 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-22787 in the wild and no public exploit code.

Affected product: Zoom Client for Meetings for Android. 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-2022-22787/ (Markdown: https://insights.sbomify.com/CVE-2022-22787/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-22787
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-22787
- OSV: https://osv.dev/vulnerability/CVE-2022-22787

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-22787/
Summaries are generated and may contain mistakes; the official description above is the record.