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PatchSiren cyber security CVE debrief

CVE-2026-11524 Tenda CVE debrief

A vulnerability has been found in Tenda W20E 15.11.0.6. The function modifyWifiFilterRules of the file /goform/modifyWifiFilterRules of the component Web Management Interface is impacted. The manipulation of the argument wifiFilterListRemark leads to a stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Vendor
Tenda
Product
W20E
CVSS
HIGH 7.4
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

Administrators and users of Tenda W20E 15.11.0.6 devices should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability has a CVSS score of 7.4 and is classified as HIGH severity. It is related to CWE-119 and CWE-121 weaknesses.

Defensive priority

High

Recommended defensive actions

  • Apply patches or updates provided by the vendor to fix the vulnerability.
  • Restrict access to the Web Management Interface to trusted users only.
  • Monitor network traffic and system logs for suspicious activity.

Evidence notes

The vulnerability was reported by an unknown vendor and has been documented in various sources, including Vuldb and NVD.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11524 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11524

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

  • CVE-2026-11524 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11524

    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.