# CVE-2020-26068: Cisco Telepresence CE Software and RoomOS Software Unauthorized Token Generation Vulnerability

> An authenticated attacker can generate unauthorized tokens to enable restricted experimental features on Cisco Telepresence devices.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Nov 2020
- **Updated:** 13 Nov 2024
- **Also known as:** GHSA-m8hx-3q8c-m23r

## What is CVE-2020-26068?

CVE-2020-26068 is a medium-severity missing authorization vulnerability in Cisco TelePresence Endpoint Software (TC/CE), published on 18 Nov 2020. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability in the xAPI service of Cisco Telepresence CE Software and Cisco RoomOS Software could allow an authenticated, remote attacker to generate an access token for an affected device. The vulnerability is due to insufficient access authorization. An attacker could exploit this vulnerability by using the xAPI service to generate a specific token. A successful exploit could allow the attacker to use the generated token to enable experimental features on the device that should not be available to users.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2020-26068?

It affects 2 products.


Products: Cisco Roomos, Cisco Telepresence Collaboration Endpoint.

## How do I fix CVE-2020-26068?

No fix has been published for CVE-2020-26068 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-26068 being exploited?

There is no known exploitation of CVE-2020-26068 in the wild and no public exploit code.

## Other vulnerabilities in Cisco TelePresence Endpoint Software (TC/CE)

- [CVE-2026-20150](https://insights.sbomify.com/CVE-2026-20150/): Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities (high 8.8)
- [CVE-2019-15288](https://insights.sbomify.com/CVE-2019-15288/): Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privilege Escalation Vulnerability (high 8.8)
- [CVE-2026-20156](https://insights.sbomify.com/CVE-2026-20156/): Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities (high 8.1)
- [CVE-2026-20153](https://insights.sbomify.com/CVE-2026-20153/): Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities (high 7.5)
- [CVE-2026-20157](https://insights.sbomify.com/CVE-2026-20157/): Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-26068 and fix it if it is affected.

What it is: CVE-2020-26068 is a medium-severity missing authorization vulnerability in Cisco TelePresence Endpoint Software (TC/CE), published on 18 Nov 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-26068 in the wild and no public exploit code.

Affected product: Cisco TelePresence Endpoint Software (TC/CE). 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-2020-26068/ (Markdown: https://insights.sbomify.com/CVE-2020-26068/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26068
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26068
- OSV: https://osv.dev/vulnerability/CVE-2020-26068

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-26068/
Summaries are generated and may contain mistakes; the official description above is the record.