Threats / Netis / CVE-2019-19356
CVE-2019-19356
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Netis WF2419 Devices vulnerability
Netis WF2419 devices contain an OS command injection vulnerability in the web management interface allowing unauthenticated remote code execution with root privileges.
Verdict
Today item — known-exploited.
An attacker can execute arbitrary system commands on affected Netis WF2419 routers through the web management page, gaining full device control. The vulnerability is actively exploited in the wild with high exploit probability.
CISA KEV Yes · 2021-11-034EPSS 0.28168 (verify live)5Exploit Public PoC6CVSS 7.5 (CISA)3CISA SSVC Exploitation: active · Automatable: no · Impact: total3
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
25 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03).
Probability (EPSS)
EPSS 0.28168 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) · Affected: Netis, WF2419 Devices. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-78 OS Command Injection — weakness family: Injection.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 635 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify the Netis WF2419 web management interface is accessible and vulnerable to command injection.
Business
Network perimeter security is compromised; the router becomes an entry point for lateral movement.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft a malicious request injecting OS commands into the vulnerable parameter, executed as root.
Business
Attacker gains complete control of network traffic, DNS resolution, and device configuration.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistence and pivot to internal network segments or exfiltrate credentials.
Business
Organizational data and connected systems face direct compromise; incident response costs escalate.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05