Search
Find a vulnerability
Search criteria
1 vulnerability found for P5 V1.1 by Shenzhen Cudy Technology Co., Ltd.
CVE-2026-71960 (GCVE-0-2026-71960)
Vulnerability from cvelistv5 – Published: 2026-08-19 14:27 – Updated: 2026-08-31 19:08
VLAI
EPSS
VEX
Title
Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT
Summary
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.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:25 UTC
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://www.cudy.com/en-us/pages/download-center/… | release-notes |
| https://www.vulncheck.com/advisories/cudy-wr3000-… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Shenzhen Cudy Technology Co., Ltd. | WR3000 2.0 |
Affected:
0 , < 2.5.24
(semver)
|
|
| Shenzhen Cudy Technology Co., Ltd. | P5 V1.1 |
Affected:
2.4.25 , ≤ 2.4.27
(semver)
|
Date Public
2026-07-30 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-71960",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T19:25:35.305436Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T19:25:47.794Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"product": "WR3000 2.0",
"vendor": "Shenzhen Cudy Technology Co., Ltd.",
"versions": [
{
"lessThan": "2.5.24",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "P5 V1.1",
"vendor": "Shenzhen Cudy Technology Co., Ltd.",
"versions": [
{
"lessThanOrEqual": "2.4.27",
"status": "affected",
"version": "2.4.25",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Nir Yehoshua"
}
],
"datePublic": "2026-07-30T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker\u0027s 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\u0027s mesh networking interface."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-798",
"description": "Use of Hard-coded Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T19:08:00.967Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Release Notes",
"tags": [
"release-notes"
],
"url": "https://www.cudy.com/en-us/pages/download-center/wr3000-2-0"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/cudy-wr3000-hard-coded-jwt-secret-authentication-bypass-via-mqtt"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-71960",
"datePublished": "2026-08-19T14:27:57.545Z",
"dateReserved": "2026-08-08T16:43:04.177Z",
"dateUpdated": "2026-08-31T19:08:00.967Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}