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PatchSiren cyber security CVE debrief

CVE-2026-100896 TOTOLINK CVE debrief

A weakness has been identified in TOTOLINK N150RT 3.4.0-B20201030. The affected element is the function system of the file /boafrm/formWlSiteSurvey of the component Web Management Interface. This manipulation of the argument wlanif causes os command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

Vendor
TOTOLINK
Product
N150RT
CVSS
HIGH 8.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-28
Original CVE updated
2026-09-28
Advisory published
2026-09-28
Advisory updated
2026-09-28

Who should care

Defenders responsible for the Web Management Interface, system function, and vulnerability management should assess exposure and prioritize verification. Operators and security teams should review compensating controls and monitor for suspicious activity. Platform owners should verify affected scope and plan vendor-supported updates or mitigations.

Why it matters

Defenders should prioritize verifying exposure of the Web Management Interface and assessing the integrity of the system function due to the weakness in TOTOLINK N150RT 3.4.0-B20201030.

  • Remote exploitation is possible
  • The exploit has been made available to the public
  • os command injection allows for arbitrary command execution
  • Verification of exposure and integrity is necessary

Technical summary

The weakness in TOTOLINK N150RT 3.4.0-B20201030 allows for os command injection via the Web Management Interface. The exploit has been made available to the public and could be used for attacks. The affected element is the function system of the file /boafrm/formWlSiteSurvey. Remote exploitation of the attack is possible. Defenders should prioritize verifying exposure and assessing integrity with source-grounded technical framing and evidence limits. The CVE record and NVD vulnerability detail page provide additional context.

Defensive priority

Defenders should prioritize verifying exposure of the Web Management Interface and assessing the integrity of the system function.

Recommended defensive actions

  • Verify exposure of the Web Management Interface
  • Assess the integrity of the system function
  • Restrict access to the Web Management Interface
  • Monitor for suspicious activity
  • Review compensating controls for exposed systems
  • Track exceptions and retest remediated assets
  • Check relevant monitoring, detection, and logs for exposed assets

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the weakness in TOTOLINK N150RT 3.4.0-B20201030. The weakness allows for os command injection via the Web Management Interface. Defenders should verify exposure and assess integrity with explicit evidence limits. The exploit has been made available publicly. Source confidence is limited.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-100896 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-100896

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-100896 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-100896

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.