Answer in brief
CVE-2026-75490 records a High severity (CVSS 7.7) vulnerability in Cudy TR3000 before 2.5.42 Unauthenticated RCE via mDNS Automesh Broker Adoption. The current sources do not mark it as known exploited. The current feed maps Shenzhen Cudy Technology Co., Ltd./TR3000 1.0 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Shenzhen Cudy Technology Co., Ltd./TR3000 1.0 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Shenzhen Cudy Technology Co., Ltd./TR3000 1.0generic | >=0 <2.5.42 | 2.5.42 |
Published upstream
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 13, 2026
Cudy TR3000 before 2.5.42 contains a remote code execution vulnerability that allows unauthenticated adjacent attackers to run root commands by advertising a rogue automesh controller over mDNS. Attackers on the upstream Ethernet segment can advertise _cudycmagent._tcp records pointing to a malicious MQTT broker, then send commands encrypted with a fixed AES key that router/batchcmd.lua executes as root.
Quoted source text, attributed separately from HOL analysis.