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CVE-2020-8515

CWE-78

Critical

103.8

RPS

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.

Source: NVD

Signals

CVSS
9.8
Critical · v3.1
EPSS
99.99%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Nov 2021
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-78
Published
1 Feb 2020
Last modified 7 Nov 2025

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2020-8515 · RPS 103.8 · DevSecure Intelligence