CVE WatchAug 19, 2026

CVE-2026-71960

Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's au

CVSS

9.1

Critical

EPSS

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KEV

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Exploit Today

0-100

Published: Aug 19, 2026 · Last modified: Aug 19, 2026 · CWE-798

EPSS · 30d

Not enough EPSS history yet.

Technical description

Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's authentication plugin that allows unauthenticated attackers to forge valid JWT tokens by extracting the secret from the firmware image. Attackers can use the extracted secret to craft arbitrary JWT tokens and authenticate to the MQTT broker without legitimate credentials, gaining unauthorized access to the device's mesh networking interface.

Official references

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