CVE-2026-6158

Totolink N300RH upgrade.so setUpgradeUboot os command injection

State: Published
Severity: 6.9 Medium
Published: Apr 13, 2026
Updated: Apr 16, 2026
Reserved: Apr 12, 2026

Description

A flaw has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is the function setUpgradeUboot of the file upgrade.so. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-78 OS Command Injection
CWE-77 Command Injection

Affected Products

Product	Versions
N300RHTotolink	6.1c.1353_B20190305Affected

References

VDB-357038 | Totolink N300RH upgrade.so setUpgradeUboot os command injectionvdb-entrytechnical-description
VDB-357038 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #796426 | TOTOLINK N300RH_V4 V6.1c.1353_B20190305 OS Command Injectionthird-party-advisory
https://github.com/xyh4ck/iot_poc/tree/main/TOTOLINK/N300RHv4/02_setUpgradeUboot_RCEexploitpatch
https://www.totolink.net/product

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