Vulnerability · Published Jun 8, 2026 · Assigned by VulDB

CVE-2026-11504Tenda CX12L Wi-Fi Schedule Configuration Endpoint openSchedWifi setSchedWifi stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in CX12L from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 59.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Tenda	CX12L	16.03.53.12

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-369124 | Tenda CX12L Wi-Fi Schedule Configuration Endpoint openSchedWifi setSchedWifi stack-based overflow vdb-entry, technical-description
VDB-369124 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-11504 | CVE Analysis and Report third-party-advisory
Submit #835649 | Tenda CX12L V16.03.53.12 Stack-based Buffer Overflow third-party-advisory
https://github.com/cve-a/moist/issues/2 exploit, issue-tracking
https://www.tenda.com.cn/ product