# CVE-2020-3441: Cisco Webex Meetings and Cisco Webex Meetings Server Information Disclosure Vulnerability

> Unauthenticated attackers can view sensitive participant data like emails and IPs from the meeting lobby, requiring Cisco Webex administrators to apply patches.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Nov 2020
- **Updated:** 13 Nov 2024
- **Also known as:** GHSA-3j43-3g85-j77v

## What is CVE-2020-3441?

CVE-2020-3441 is a medium-severity vulnerability in Cisco Webex Meetings, published on 18 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to view sensitive information from the meeting room lobby. This vulnerability is due to insufficient protection of sensitive participant information. An attacker could exploit this vulnerability by browsing the Webex roster. A successful exploit could allow the attacker to gather information about other Webex participants, such as email address and IP address, while waiting in the lobby.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2020-3441?

It affects 2 products.


Products: Cisco Webex Meetings, Cisco Webex Meetings Server.

## How do I fix CVE-2020-3441?

No fix has been published for CVE-2020-3441 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3441 being exploited?

There is no known exploitation of CVE-2020-3441 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Webex Meetings

- [CVE-2017-12368](https://insights.sbomify.com/CVE-2017-12368/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12369](https://insights.sbomify.com/CVE-2017-12369/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12370](https://insights.sbomify.com/CVE-2017-12370/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12371](https://insights.sbomify.com/CVE-2017-12371/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12372](https://insights.sbomify.com/CVE-2017-12372/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3441 and fix it if it is affected.

What it is: CVE-2020-3441 is a medium-severity vulnerability in Cisco Webex Meetings, published on 18 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-3441 in the wild and no public exploit code.

Affected product: Cisco Webex Meetings. 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-2020-3441/ (Markdown: https://insights.sbomify.com/CVE-2020-3441/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3441
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3441
- OSV: https://osv.dev/vulnerability/CVE-2020-3441

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-3441/
Summaries are generated and may contain mistakes; the official description above is the record.