Search
Find a vulnerability
Search criteria
2 vulnerabilities by Jumo
CVE-2025-41731 (GCVE-0-2025-41731)
Vulnerability from nvd – Published: 2025-11-10 07:44 – Updated: 2025-11-10 15:20
VLAI
Title
Jumo: Insufficient entropy in PRNG may lead to root access
Summary
A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Jumo | variTRON300 |
Affected:
0.0.0.0 , < 9.0.2.5
(semver)
|
|
| Jumo | variTRON500 |
Affected:
0.0.0.0 , < 9.0.2.5
(semver)
|
|
| Jumo | variTRON500 touch |
Affected:
0.0.0.0 , < 9.0.2.5
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-41731",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-11-10T15:18:58.302257Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-11-10T15:20:07.843Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "variTRON300",
"vendor": "Jumo",
"versions": [
{
"lessThan": "9.0.2.5",
"status": "affected",
"version": "0.0.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "variTRON500",
"vendor": "Jumo",
"versions": [
{
"lessThan": "9.0.2.5",
"status": "affected",
"version": "0.0.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "variTRON500 touch",
"vendor": "Jumo",
"versions": [
{
"lessThan": "9.0.2.5",
"status": "affected",
"version": "0.0.0.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled."
}
],
"value": "A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-11-10T07:44:40.644Z",
"orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"shortName": "CERTVDE"
},
"references": [
{
"url": "https://jumo.csaf-tp.certvde.com/.well-known/csaf/white/2025/vde-2025-086.json"
}
],
"source": {
"advisory": "VDE-2025-086",
"defect": [
"CERT@VDE#641857"
],
"discovery": "UNKNOWN"
},
"title": "Jumo: Insufficient entropy in PRNG may lead to root access",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"assignerShortName": "CERTVDE",
"cveId": "CVE-2025-41731",
"datePublished": "2025-11-10T07:44:40.644Z",
"dateReserved": "2025-04-16T11:17:48.319Z",
"dateUpdated": "2025-11-10T15:20:07.843Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-41731 (GCVE-0-2025-41731)
Vulnerability from cvelistv5 – Published: 2025-11-10 07:44 – Updated: 2025-11-10 15:20
VLAI
Title
Jumo: Insufficient entropy in PRNG may lead to root access
Summary
A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Jumo | variTRON300 |
Affected:
0.0.0.0 , < 9.0.2.5
(semver)
|
|
| Jumo | variTRON500 |
Affected:
0.0.0.0 , < 9.0.2.5
(semver)
|
|
| Jumo | variTRON500 touch |
Affected:
0.0.0.0 , < 9.0.2.5
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-41731",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-11-10T15:18:58.302257Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-11-10T15:20:07.843Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "variTRON300",
"vendor": "Jumo",
"versions": [
{
"lessThan": "9.0.2.5",
"status": "affected",
"version": "0.0.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "variTRON500",
"vendor": "Jumo",
"versions": [
{
"lessThan": "9.0.2.5",
"status": "affected",
"version": "0.0.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "variTRON500 touch",
"vendor": "Jumo",
"versions": [
{
"lessThan": "9.0.2.5",
"status": "affected",
"version": "0.0.0.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled."
}
],
"value": "A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-11-10T07:44:40.644Z",
"orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"shortName": "CERTVDE"
},
"references": [
{
"url": "https://jumo.csaf-tp.certvde.com/.well-known/csaf/white/2025/vde-2025-086.json"
}
],
"source": {
"advisory": "VDE-2025-086",
"defect": [
"CERT@VDE#641857"
],
"discovery": "UNKNOWN"
},
"title": "Jumo: Insufficient entropy in PRNG may lead to root access",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"assignerShortName": "CERTVDE",
"cveId": "CVE-2025-41731",
"datePublished": "2025-11-10T07:44:40.644Z",
"dateReserved": "2025-04-16T11:17:48.319Z",
"dateUpdated": "2025-11-10T15:20:07.843Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}