CVE-2026-6158: OS Command Injection in Totolink N300RH
CVE-2026-6158 is a medium severity OS command injection vulnerability in the Totolink N300RH router firmware version 6. 1c. 1353_B20190305. The flaw exists in the setUpgradeUboot function within the upgrade. so file, where manipulation of the FileName argument allows remote attackers to execute arbitrary OS commands. The vulnerability is remotely exploitable without authentication and has a CVSS 4. 0 base score of 6. 9. Although an exploit has been published, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance is currently available from the vendor.
AI Analysis
Technical Summary
This vulnerability affects the Totolink N300RH router running firmware version 6.1c.1353_B20190305. The issue lies in the setUpgradeUboot function of the upgrade.so component, where improper handling of the FileName argument enables an attacker to perform OS command injection remotely. The vulnerability requires no privileges or user interaction and has a moderate impact score of 6.9 according to CVSS 4.0. While an exploit is publicly available, no vendor advisory or patch has been published to date, and the remediation level is unknown.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device without authentication. This could lead to unauthorized control over the router, potentially compromising network security. However, there are no confirmed reports of active exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting remote access to the device's management interfaces and monitoring for unusual activity related to firmware upgrade functions. Avoid exposing the device to untrusted networks if possible.
CVE-2026-6158: OS Command Injection in Totolink N300RH
Description
CVE-2026-6158 is a medium severity OS command injection vulnerability in the Totolink N300RH router firmware version 6. 1c. 1353_B20190305. The flaw exists in the setUpgradeUboot function within the upgrade. so file, where manipulation of the FileName argument allows remote attackers to execute arbitrary OS commands. The vulnerability is remotely exploitable without authentication and has a CVSS 4. 0 base score of 6. 9. Although an exploit has been published, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance is currently available from the vendor.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Totolink N300RH router running firmware version 6.1c.1353_B20190305. The issue lies in the setUpgradeUboot function of the upgrade.so component, where improper handling of the FileName argument enables an attacker to perform OS command injection remotely. The vulnerability requires no privileges or user interaction and has a moderate impact score of 6.9 according to CVSS 4.0. While an exploit is publicly available, no vendor advisory or patch has been published to date, and the remediation level is unknown.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device without authentication. This could lead to unauthorized control over the router, potentially compromising network security. However, there are no confirmed reports of active exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting remote access to the device's management interfaces and monitoring for unusual activity related to firmware upgrade functions. Avoid exposing the device to untrusted networks if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-12T18:06:33.592Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dc7c4782d89c981f24c28b
Added to database: 4/13/2026, 5:16:55 AM
Last enriched: 4/13/2026, 5:32:22 AM
Last updated: 4/13/2026, 6:24:01 AM
Views: 3
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