What is CVE-2020-12774?

CVE-2020-12774 is a high-severity vulnerability in D-Link Dsl-7740c, classified under OS Command Injection. CVSS score: 8.2/10. Published 2020-07-22.

How severe is CVE-2020-12774?

High severity. CVSS v3 base score is 8.2 out of 10.

RCE in D-Link Dsl-7740c

CVE-2020-12774

D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-07-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

D-Link Dsl-7740c — versions 0
Dlink Dsl-7740c
Dlink Dsl-7740c Firmware — versions v6.tr069.20180723

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.twcert.org.tw/tw/cp-132-3802-27204-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2020-12774?: CVE-2020-12774 is a high-severity vulnerability in D-Link Dsl-7740c, classified under OS Command Injection. CVSS score: 8.2/10. Published 2020-07-22.
How severe is CVE-2020-12774?: High severity. CVSS v3 base score is 8.2 out of 10.