Back to KEVs

CVE-2020-8515

DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta, and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta devices allow remote code execution as...

Basic Information

CVE State
PUBLISHED
Reserved Date
February 01, 2020
Published Date
February 01, 2020
Last Updated
October 21, 2025
Vendor
DrayTek
Product
Vigor2960, Vigor3900, Vigor300B
Description
DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta, and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta devices allow remote code execution as root (without authentication) via shell metacharacters to the cgi-bin/mainfunction.cgi URI. This issue has been fixed in Vigor3900/2960/300B v1.5.1.
Tags
cisa nuclei_scanner edge

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

10.0

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2021-11-03 00:00:00 UTC) Source

References

https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-%28cve-2020-8515%29/ http://packetstormsecurity.com/files/156979/DrayTek-Vigor2960-Vigor3900-Vigor300B-Remote-Command-Execution.html

Known Exploited Vulnerability Information

Source Added Date
CISA 2021-11-03 00:00:00 UTC
CISA 2021-11-03 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-8515.yaml 2025-04-25 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

darrenmartyn/CVE-2020-8515

Type: github • Created: 2021-09-01 22:47:54 UTC • Stars: 2

Draytek CVE-2020-8515 PoC

imjdl/CVE-2020-8515-PoC

Type: github • Created: 2020-03-30 03:31:26 UTC • Stars: 14

CVE-2020-8515-PoC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Added to KEVIntel

  • Detected by Nuclei