# CVE-2020-15415: DrayTek Multiple Vigor Routers OS Command Injection Vulnerability

Source: https://junglewise.ai/threats/cve-2020-15415-draytek-multiple-vigor-routers-os-command-injection-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-09-30. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2020-15415 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2024-09-30

DrayTek Vigor3900, Vigor2960, and Vigor300B devices contain an OS command injection vulnerability in the cvmcfgupload endpoint of mainfunction.cgi. Remote attackers can execute arbitrary commands via shell metacharacters in a filename when the text/x-python-script content type is used.

Vendors: [DrayTek](https://junglewise.ai/threats/vendors/draytek).

## Quick answers

**Is CVE-2020-15415 exploited in the wild?** Yes. CVE-2020-15415 is known to be exploited in the wild, first recorded on 30 September 2024. Treat it as urgent.

**How severe is CVE-2020-15415?** Critical severity, with a CVSS score of 9.8, published 30 September 2024.

**Which products and versions are affected?** DrayTek Vigor3900 before 1.5.1; DrayTek Vigor2960 before 1.5.1; DrayTek Vigor300B before 1.5.1.

**Is there a fix for CVE-2020-15415?** 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-2020-15415 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2020-15415?** Check whether you run DrayTek Multiple Vigor Routers or DrayTek Vigor Routers. 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

- DrayTek Vigor3900 before 1.5.1
- DrayTek Vigor2960 before 1.5.1
- DrayTek Vigor300B before 1.5.1

## Timeline

- 2020-06-30: disclosed: NVD Published Date
- 2024-09-30: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2024-09-30: exploited: Reported as exploited in the wild in CISA KEV catalog

## Related threats

- [DrayTek Vigor Routers OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2024-12987-draytek-vigor-routers-os-command-injection-vulnerability)
- [Multiple DrayTek Vigor Routers Web Management Page Vulnerability](https://junglewise.ai/threats/cve-2020-8515-multiple-draytek-vigor-routers-web-management-page-vulnerability)