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CVE-2026-6158

Totolink N300RH upgrade.so setUpgradeUboot os command injection

HIGH
7.3
CVSS Score
Published: April 13, 2026 at 04:00 AM UTC
Updated: October 26, 2026 at 09:10 PM UTC
2 products affected across 1 vendorN300RH FirmwareN300RH

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Severity
HIGH7.3
Exploit prediction
EPSS 2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/357038
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/357038/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/796426
ExploitPatch
Source: cverecord
https://github.com/xyh4ck/iot_poc/tree/main/TOTOLINK/N300RHv4/02_setUpgradeUboot_RCE
Product
Source: cverecord
https://www.totolink.net/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78CWE-77

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