CVE-2019-5071

Name: CVE-2019-5071
Creator: NVD / NIST
Published: 2019-11-21T17:15:12.057+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.75%

Last modified Jun 17, 2026

CVE-2019-5071 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An exploitable command injection vulnerability exists in the /goform/WanParameterSetting functionality of Tenda AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Route (AC9V1.0 Firmware V15.03.05.16multiTRU). A specially crafted HTTP POST request can cause a command injection in the DNS1 post parameters, resulting in code execution. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

An exploitable command injection vulnerability exists in the /goform/WanParameterSetting functionality of Tenda AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Route (AC9V1.0 Firmware V15.03.05.16multiTRU). A specially crafted HTTP POST request can cause a command injection in the DNS1 post parameters, resulting in code execution. An attacker can send HTTP POST request with command to trigger this vulnerability.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.75%

75.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tendacn	Ac9v1.0 Firmware	15.03.05.14_en
Tendacn	Ac9v1.0 Firmware	15.03.05.16multitru

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0861Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0861Exploit, Third Party Advisory

Timeline

Published: Nov 21, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5071?

How severe is CVE-2019-5071?

CVE-2019-5071 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5071?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5071?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST