CVE-2026-3227
moderate-risk
Published 2026-03-16
A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command. In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing. Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.
Do I need to act?
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0.52% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10
Medium
ADJACENT_NETWORK
/ LOW complexity
Affected Products (3)
Affected Vendors
References (6)
Vendor Advisory
https://www.tp-link.com/us/support/faq/5018/
33
/ 100
moderate-risk
Severity
22/34 · High
Exploitability
2/34 · Minimal
Exposure
9/34 · Low