CVE-2026-71960Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT
Updated under an hour ago ()
Does this affect you?
It affects Shenzhen Cudy Technology Co., Ltd. WR3000 2.0 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-798
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 31, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Shenzhen Cudy Technology Co., Ltd. WR3000 2.0 shenzhen_cudy_technology:wr3000_2.0 (from the name) | before 2.5.24 | CNA record |
Shenzhen Cudy Technology Co., Ltd. P5 V1.1 shenzhen_cudy_technology:p5_v1.1 (from the name) | from 2.4.25 through 2.4.27 | CNA record |
References
- https://www.cudy.com/en-us/pages/download-center/wr3000-2-0release-notes
- https://www.vulncheck.com/advisories/cudy-wr3000-hard-coded-jwt-secret-authentication-bypass-via-mqttthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.