FKIE_CVE-2025-6523
Vulnerability from fkie_nvd - Published: 2025-07-22 17:15 - Updated: 2026-06-17 10:02
Severity
Summary
Use of weak credentials in emergency authentication component in Devolutions Server allows an unauthenticated attacker to bypass authentication via brute forcing the short emergency codes generated by the server within a feasible timeframe.
This issue affects the following versions :
* Devolutions Server 2025.2.2.0 through 2025.2.3.0
*
Devolutions Server 2025.1.11.0 and earlier
References
| URL | Tags | ||
|---|---|---|---|
| security@devolutions.net | https://devolutions.net/security/advisories/DEVO-2025-0012/ | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| devolutions | devolutions_server | * | |
| devolutions | devolutions_server | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Server",
"vendor": "Devolutions",
"versions": [
{
"lessThanOrEqual": "2025.1.11.0",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThanOrEqual": "2025.2.3.0",
"status": "affected",
"version": "2025.2.2.0",
"versionType": "custom"
}
]
}
],
"source": "security@devolutions.net"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "310157E9-CED1-4F8C-85EA-AA8156AFD886",
"versionEndIncluding": "2025.1.11.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F848B62F-98BE-40E1-9D26-F55231A12E48",
"versionEndExcluding": "2025.2.4.0",
"versionStartIncluding": "2025.2.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Use of weak credentials in emergency authentication component in Devolutions Server allows an unauthenticated attacker to bypass authentication via brute forcing the short emergency codes generated by the server within a feasible timeframe.\n\nThis issue affects the following versions :\n\n * Devolutions Server 2025.2.2.0 through 2025.2.3.0\n * \nDevolutions Server 2025.1.11.0 and earlier"
},
{
"lang": "es",
"value": "El uso de credenciales d\u00e9biles en el componente de autenticaci\u00f3n de emergencia de Devolutions Server permite a un atacante no autenticado eludir la autenticaci\u00f3n mediante fuerza bruta los c\u00f3digos de emergencia cortos generados por el servidor dentro de un plazo razonable. Este problema afecta a las siguientes versiones: * Devolutions Server 2025.2.2.0 a 2025.2.3.0 * Devolutions Server 2025.1.11.0 y anteriores"
}
],
"id": "CVE-2025-6523",
"lastModified": "2026-06-17T10:02:04.377",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.1,
"impactScore": 4.0,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.5,
"baseSeverity": "CRITICAL",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "security@devolutions.net",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-6523",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-07-22T18:40:53.083607Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-07-22T17:15:33.900",
"references": [
{
"source": "security@devolutions.net",
"tags": [
"Vendor Advisory"
],
"url": "https://devolutions.net/security/advisories/DEVO-2025-0012/"
}
],
"sourceIdentifier": "security@devolutions.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-1391"
}
],
"source": "security@devolutions.net",
"type": "Secondary"
}
]
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.