CVE-2026-6158

HIGH 7.3

Totolink N300RH upgrade.so setUpgradeUboot os command injection

CVSS Score

7.3

EPSS Score

3.0%

EPSS Percentile

86th

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.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	n300rh
Published	Apr 13, 2026
Last Updated	Apr 16, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / N300RH

6.1c.1353_B20190305

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/357038 vuldb.com: https://vuldb.com/vuln/357038/cti vuldb.com: https://vuldb.com/submit/796426 github.com: https://github.com/xyh4ck/iot_poc/tree/main/TOTOLINK/N300RHv4/02_setUpgradeUboot_RCE totolink.net: https://www.totolink.net/

Credits

🔍 xuanyu (VulDB User)