CVE-2020-8515
CriticalActively exploited (CISA KEV)
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
DrayTek Multiple Vigor Routers
PublishedFeb 1, 2020
First seenFeb 1, 2020
Added to KEVNov 3, 2021
Weakness typeCWE-78OS command injection
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: May 3, 2022Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| draytek vigor2960_firmware | 1.3.1 | — |
| draytek vigor300b_firmware | 1.3.3, 1.4.2.1, 1.4.4 | — |
| draytek vigor3900_firmware | 1.4.4 | — |
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