What is CVE-2020-10826?

CVE-2020-10826 is a critical-severity vulnerability in Draytek Vigor2960, classified under Command Injection. CVSS score: 9.8/10. Published 2020-03-26.

How severe is CVE-2020-10826?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Draytek Vigor2960

CVE-2020-10826

/cgi-bin/activate.cgi on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve command injection via a remote HTTP request in DEBUG mode.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-03-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.394 (98.6th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.394 · newest: 0.394 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-77 — Command Injection

References

slashd.ga/2020/03/draytek-vulnerabilities/ (Exploit, Third Party Advisory)
www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack… (Vendor Advisory)

Frequently asked questions

What is CVE-2020-10826?: CVE-2020-10826 is a critical-severity vulnerability in Draytek Vigor2960, classified under Command Injection. CVSS score: 9.8/10. Published 2020-03-26.
How severe is CVE-2020-10826?: Critical severity. CVSS v3 base score is 9.8 out of 10.