How severe is CVE-2026-28522?

CVE-2026-28522 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-28522 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28522?

CVE-2026-28522 affects Tuya Arduino-tuyaopen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28522?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-28522 have an EU (EUVD) identifier?

Yes. CVE-2026-28522 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12229.

When was CVE-2026-28522 published?

CVE-2026-28522 was published on 2026-03-16 and last updated on 2026-06-17.

CVE-2026-28522

CVE-2026-28522 is a medium-severity vulnerability in Tuya Arduino-tuyaopen with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12229
Weakness: CWE-476
Affected product: Tuya Arduino-tuyaopen
Published: 2026-03-16
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-28522?: 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.
How severe is CVE-2026-28522?: CVE-2026-28522 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-28522 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28522?: CVE-2026-28522 affects Tuya Arduino-tuyaopen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28522?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28522 have an EU (EUVD) identifier?: Yes. CVE-2026-28522 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12229.
When was CVE-2026-28522 published?: CVE-2026-28522 was published on 2026-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tuya:arduino-tuyaopen:*:*:*:*:*:*:*:*

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