PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-11620 TOTOLINK CVE debrief

A security flaw has been discovered in TOTOLINK EX200 4.0.3c.7646. This affects an unknown function of the file /etc/vsftpd.conf of the component vsftpd. The manipulation results in least privilege violation. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Vendor
TOTOLINK
Product
EX200
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-09
Advisory published
2026-06-09
Advisory updated
2026-06-09

Who should care

Users of TOTOLINK EX200 4.0.3c.7646

Technical summary

The vulnerability affects the vsftpd component of TOTOLINK EX200 4.0.3c.7646, specifically an unknown function of the file /etc/vsftpd.conf. The vulnerability allows for a least privilege violation and can be exploited remotely.

Defensive priority

Medium

Recommended defensive actions

  • Apply patches or updates provided by the vendor to fix the vulnerability.
  • Restrict access to the vsftpd component to prevent remote exploitation.
  • Monitor the system for suspicious activity.

Evidence notes

The vulnerability has been publicly disclosed and an exploit has been released.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11620 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11620

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

  • CVE-2026-11620 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11620

    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.