CVE-2026-6158 | Totolink N300RH 6.1c.1353_B20190305 upgrade.so setUpgradeUboot FileName os command injection

VDB-357038 · CVE-2026-6158 · SUBMIT #357038 TOTOLINK N300RH 6.1C.1353_B20190305 UPGRADE.SO SETUPGRADEUBOOT FILENAME OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.6 $0-$5k 1.48+ Summaryinfo A vulnerability labeled as critical has been found in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the function setUpgradeUboot of the file upgrade.so. Such manipulation of the argument FileName leads to os command injection. This vulnerability is listed as CVE-2026-6158. The attack may be performed from remote. In addition, an exploit is available. Detailsinfo A vulnerability was found in Totolink N300RH 6.1c.1353_B20190305. It has been rated as critical. Affected by this issue is the function setUpgradeUboot of the file upgrade.so. The manipulation of the argument FileName with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The advisory is available at github.com. This vulnerability is handled as CVE-2026-6158. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project. The exploit is available at github.com. It is declared as proof-of-concept. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Totolink Name N300RH Version 6.1c.1353_B20190305 License commercial Website Vendor: https://www.totolink.net/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.3 VulDB Meta Temp Score: 6.6 VulDB Base Score: 7.3 VulDB Temp Score: 6.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Os command injection CWE: CWE-78 / CWE-77 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/12/2026 Advisory disclosed 04/12/2026 +0 days VulDB entry created 04/12/2026 +0 days VulDB entry last update Sourcesinfo Vendor: totolink.net Advisory: github.com Status: Not defined CVE: CVE-2026-6158 (🔒) GCVE (CVE): GCVE-0-2026-6158 GCVE (VulDB): GCVE-100-357038 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/12/2026 20:11 Changes: 04/12/2026 20:11 (56) Complete: 🔍 Submitter: xuanyu Cache ID: 99:7C1:101 Submitinfo Accepted Submit #796426: TOTOLINK N300RH_V4 V6.1c.1353_B20190305 OS Command Injection (by xuanyu) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸