VULNERABILITY INTELLIGENCE

CVE-2020-8515

CVSS score9.8 CRITICAL

EPSS probability99.99%

CISA KEVKnown exploited vulnerability

Published2020-02-01

Last modified2026-06-17

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

Known Exploited Vulnerability

Multiple DrayTek Vigor Routers Web Management Page Vulnerability

Vendor / product: DrayTek / Multiple Vigor Routers

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.

Weakness classification

nvd@nist.gov: CWE-78
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-78

Primary references

cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
cve@mitre.org — Permissions Required, Third Party Advisory
cve@mitre.org — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource