Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.5%
from disclosure to weapon1 days
Published on NVDAug 19
1st PoC+1d
exploitation probability
0.5%top 57% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
Shenzhen Cudy Technology Co., Ltd. · WR3000 2.0public PoCs found — 1
githubgithub.com/Hunt-Benito/the-same-key-opens-every-box-cve-2026-71960-hard-coded-jwt-secret-in-cudy-wr3000-mesh-mqtt★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.