CVE-2026-3227

HIGH EPSS 61.6%
Published Mar 16, 20263mo ago · Modified Jun 17, 20261w ago
8.5 CVSS 4.0
High
Find Similar
Published Mar 16, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.5
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
61.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

Affected Products 6

VendorProductVersionRange
tp-linktl-wr802n_firmware* <260304
tp-linktl-wr802nv4any
tp-linktl-wr841n_firmware* <260303
tp-linktl-wr841n14any
tp-linktl-wr840n_firmware* <260304
tp-linktl-wr840n6any

References 6

  • tp-link.com https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/us/support/faq/5018/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.