Tuya arduino-TuyaOpen up to 1.2.0 WiFiUDP null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Tuya arduino-TuyaOpen up to 1.2.0 and classified as problematic. The impacted element is an unknown function of the component WiFiUDP. The manipulation results in null pointer dereference. This vulnerability was named CVE-2026-28522. The attack needs to be approached within the local network. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Tuya arduino-TuyaOpen up to 1.2.0. Affected is an unknown code of the component WiFiUDP. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference vulnerability in the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets that trigger a null pointer dereference, resulting in a denial-of-service condition.

The weakness was presented by Maxime Rossi Bellom. The advisory is available at src.tuya.com. This vulnerability is traded as CVE-2026-28522 since 02/27/2026. The exploitability is told to be easy. The attack needs to be initiated within the local network. The technical details are unknown and an exploit is not available.

Upgrading to version 1.2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-12229). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: arduino-TuyaOpen 1.2.1

Timelineinfo

02/27/2026 CVE reserved
03/15/2026 +16 days Advisory disclosed
03/15/2026 +0 days VulDB entry created
05/27/2026 +73 days VulDB entry last update

Sourcesinfo

Advisory: src.tuya.com
Researcher: Maxime Rossi Bellom
Status: Confirmed

CVE: CVE-2026-28522 (🔒)
GCVE (CVE): GCVE-0-2026-28522
GCVE (VulDB): GCVE-100-351138
EUVD: 🔒

Entryinfo

Created: 03/15/2026 15:14
Updated: 05/27/2026 02:25
Changes: 03/15/2026 15:14 (77), 03/15/2026 16:43 (1), 03/20/2026 23:45 (1), 05/27/2026 02:25 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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