Vulnerability in Shenzhen Cudy Technology Co., Ltd. P5 V1.1
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 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.cudy.com/en-us/pages/download-center/wr3000-2-0 (release-notes)
- www.vulncheck.com/advisories/cudy-wr3000-hard-coded-jwt-secret-authentication-b… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-71960?
- CVE-2026-71960 is a critical-severity vulnerability in Shenzhen Cudy Technology Co., Ltd. P5 V1.1, classified under Use of Hard-coded Credentials. CVSS score: 9.1/10. Published 2026-08-19.
- How severe is CVE-2026-71960?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2026-71960 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.