CVEvulnerability

CVE-2026-3227

8.5 HIGH Published 2026-03-16 Modified 2026-07-01 Official page ↗
Status
Analyzed
Published
2026-03-16
Last modified
2026-07-01
Assigner
f23511db-6c3e-4e32-a477-6aa17d310630
CVSS 4.0 (f23511db-6c3e-4e32-a477-6aa17d310630)
8.5 HIGH — 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
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78

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.

Affected configurations

• tp-link tl-wr802n firmware (< 260304) • tp-link tl-wr841n firmware (< 260303) • tp-link tl-wr840n firmware (< 260304)

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References