CVE Database · CVE-2020-8515
CVSS v3.1
9.8
EPSS
99.99%
Published
Feb 1, 2020
Modified
Nov 7, 2025
CISA Known Exploited Vulnerability
Added: 2021-11-03 · Due: 2022-05-03
Apply updates per vendor instructions.
Public PoC / Exploit (6)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeaknesses (CWE)
Affected Products (8)
References (7)