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PatchSiren cyber security CVE debrief

CVE-2026-11554 TOTOLINK CVE debrief

A vulnerability was determined in TOTOLINK CP450 4.1.0cu.747. This vulnerability affects unknown code of the file /etc/vsftpd.conf of the component vsftpd. This manipulation causes least privilege violation. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Vendor
TOTOLINK
Product
CP450
CVSS
LOW 2.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-08
Original CVE updated
2026-07-23
Advisory published
2026-06-08
Advisory updated
2026-07-23

Who should care

Users of TOTOLINK CP450 4.1.0cu.747 should apply patches or mitigations to prevent exploitation of this vulnerability.

Technical summary

The vulnerability has a CVSS score of 2.1 and is classified as LOW severity. The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

Low

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 for publicly disclosed exploits and adjust security controls accordingly.

Evidence notes

The vulnerability was publicly disclosed on 2026-06-08T18:16:32.670Z and modified on 2026-06-09T01:32:36.950Z. The CVE record can be found at [cve-org].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11554 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11554

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

  • CVE-2026-11554 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11554

    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.