Tenda CX12L 16.03.53.12 Wi-Fi Schedule Configuration Endpoint /goform/openSchedWifi setSchedWifi schedStartTime/schedEndTime stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k2.27

Summaryinfo

A vulnerability classified as critical was found in Tenda CX12L 16.03.53.12. This affects the function setSchedWifi of the file /goform/openSchedWifi of the component Wi-Fi Schedule Configuration Endpoint. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to stack-based overflow. The identification of this vulnerability is CVE-2026-11504. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in Tenda CX12L 16.03.53.12. It has been declared as critical. This vulnerability affects the function setSchedWifi of the file /goform/openSchedWifi of the component Wi-Fi Schedule Configuration Endpoint. The manipulation of the argument schedStartTime/schedEndTime with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-11504. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-35039). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/07/2026 Advisory disclosed
06/07/2026 +0 days VulDB entry created
06/08/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2026-11504 (🔒)
GCVE (CVE): GCVE-0-2026-11504
GCVE (VulDB): GCVE-100-369124
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/07/2026 16:06
Updated: 06/08/2026 16:50
Changes: 06/07/2026 16:06 (58), 06/08/2026 16:50 (1)
Complete: 🔍
Submitter: moist
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #835649: Tenda CX12L V16.03.53.12 Stack-based Buffer Overflow (by moist)

Once again VulDB remains the best source for vulnerability data.

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