CVE-2019-19824

HIGH EXPLOITED IN THE WILD NUCLEI

TOTOLINK Realtek SDK Routers - Authenticated OS Command Injection via sysCmd Parameter

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2019-19824 has been observed exploited in the wild (reported by VulnCheck KEV, InTheWild.io). A Nuclei detection template is also available.

Description

On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, N100RE through 3.4.0, and N302RE 2.0.2.

Nuclei Templates (1)

TOTOLINK Realtek SD Routers - Remote Command Injection
HIGHby gy741

References (5)

Core 5
Core References
Exploit, Mailing List, Third Party Advisory mailing-list
http://seclists.org/fulldisclosure/2020/Jan/36
Exploit, Mailing List, Third Party Advisory mailing-list
http://seclists.org/fulldisclosure/2020/Jan/38
Exploit, Third Party Advisory
https://sploit.tech

Scores

CVSS v3 8.8
EPSS 0.2514
EPSS Percentile 97.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

VulnCheck KEV 2021-11-11
InTheWild.io 2021-11-11
CWE
CWE-78
Status published
Products (8)
totolink/a3002ru_firmware < 2.0.0
totolink/a702r_firmware < 2.1.3
totolink/n100re_firmware < 3.4.0
totolink/n150rt_firmware < 3.4.0
totolink/n200re_firmware < 4.0.0
totolink/n300rt_firmware < 3.4.0
totolink/n301rt_firmware < 2.1.6
totolink/n302r_firmware < 3.4.0
Published Jan 27, 2020
Tracked Since Feb 18, 2026