CVE-2020-36178

CRITICAL

TP-Link TL-WR840N 6_EU_0.9.1_4.16 - OS Command Injection via IP Address Field

Title source: llm
STIX 2.1

Description

oal_ipt_addBridgeIsolationRules on TP-Link TL-WR840N 6_EU_0.9.1_4.16 devices allows OS command injection because a raw string entered from the web interface (an IP address field) is used directly for a call to the system library function (for iptables). NOTE: oal_ipt_addBridgeIsolationRules is not the only function that calls util_execSystem.

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.1361
EPSS Percentile 94.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-78
Status published
Products (1)
tp-link/tl-wr840n_firmware 6_eu_0.9.1_4.16
Published Jan 06, 2021
Tracked Since Feb 18, 2026