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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-28522

20
FAUCET Score

CVE-2026-28522 is a null pointer dereference vulnerability found in the WiFiUDP component of arduino-TuyaOpen versions prior to 1.2.1, affecting devices utilizing this library. An unauthenticated attacker on the same local area network can exploit this by sending a large volume of malicious UDP packets, causing memory exhaustion and a denial-of-service condition. This vulnerability carries a CVSS score of 6.5 (Medium), indicating a high impact on availability with low attack complexity and requiring network access. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.1CPE matchmatch criteria
cpe:2.3:a:tuya:arduino-tuyaopen:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

7.1HIGH

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 28th percentile among its peer group of 1,802 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / tuya/arduino-TuyaOpen
Product
src.tuya.com / announcement/32
Vendor Advisory
vulncheck.com / advisories/arduino-tuyaopen-wifiudp-null-pointer-dereference-denial-of-service
Third Party Advisory