# CVE-2020-5849: Unraid Authentication Bypass Vulnerability

Source: https://junglewise.ai/threats/cve-2020-5849-unraid-authentication-bypass-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-11-03. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2020-5849 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2021-11-03

Unraid 6.8.0 contains an authentication bypass vulnerability due to incorrect comparison logic. This flaw allows unauthenticated attackers to gain access to the administrative interface and can be chained with CVE-2020-5847 to achieve remote code execution as root.

Technologies: [Unraid](https://junglewise.ai/threats/technologies/unraid). Vendors: [Unraid](https://junglewise.ai/threats/vendors/unraid).

## Quick answers

**Is CVE-2020-5849 exploited in the wild?** Yes. CVE-2020-5849 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.

**How severe is CVE-2020-5849?** Critical severity, with a CVSS score of 7.5, published 3 November 2021.

**Which products and versions are affected?** Unraid Unraid 6.8.0.

**Is there a fix for CVE-2020-5849?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2020-5849 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2020-5849?** Check whether you run Unraid. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Unraid Unraid 6.8.0

## Timeline

- 2020-02-06: disclosed: Initial disclosure by Sysdream labs
- 2020-03-16: other: NVD Published Date
- 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

## Related threats

- [Unraid Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2020-5847-unraid-remote-code-execution-vulnerability)