HOMEVULNERABILITIESCVE-2019-5071
HIGH

CVE-2019-5071

CWE-78Published: November 21, 2019· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-5071 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

tendacn2 product(s)
ac9v1.0 firmwareac1200 smart dual-band gigabit wifi
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2019-5071
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedNov 21, 2019

Related CVEs (CWE-78)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2019-5071 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.