PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-11504 Tenda CVE debrief

A vulnerability was detected in Tenda CX12L 16.03.53.12. The impacted element is the function setSchedWifi of the file /goform/openSchedWifi of the component Wi-Fi Schedule Configuration Endpoint. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

Vendor
Tenda
Product
CX12L
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

Users of Tenda CX12L 16.03.53.12 should apply patches or mitigations to prevent exploitation of this vulnerability.

Technical summary

The vulnerability is a stack-based buffer overflow in the setSchedWifi function of /goform/openSchedWifi. This occurs when the schedStartTime and schedEndTime arguments are manipulated.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates provided by the vendor to fix the vulnerability.
  • Restrict access to the Wi-Fi Schedule Configuration Endpoint.
  • Monitor network traffic for suspicious activity.

Evidence notes

The CVE record and details were obtained from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11504 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11504

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

  • CVE-2026-11504 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11504

    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.