vde-2025-066
MEDIUM CVSS 6.5 csaf_smasolartechnologyag
Description
A security researcher discovered a Directory Traversal vulnerability in Sunny Boy 3, which allows remote attackers to access sensitive information. The vulnerability is already fixed since January 2021 with version 3.10.27.R.
Timeline
- Published
- 2025-08-27 08:00 UTC
- Last Modified
- 2025-08-27
CVSS Details
CVSS details not available.
Affected Products
No product information available.
Weaknesses (CWE)
References
No references available.
Linked Vulnerabilities
No linked vulnerabilities found.
{
"document": {
"acknowledgments": [
{
"organization": "CERT@VDE",
"summary": "coordination",
"urls": [
"https://certvde.com"
]
},
{
"names": [
"Ahmed Alroky"
],
"organization": " KOIN Network",
"summary": "reporting"
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-GB",
"notes": [
{
"category": "summary",
"text": "A security researcher discovered a Directory Traversal vulnerability in Sunny Boy 3, which allows remote attackers to access sensitive information. \nThe vulnerability is already fixed since January 2021 with version 3.10.27.R. ",
"title": "Summary"
},
{
"category": "description",
"text": "An authenticated user can access files and directories outside the intended web root.",
"title": "Impact"
},
{
"category": "description",
"text": "Update Firmware to at least version 3.10.27.R.",
"title": "Remediation"
}
],
"publisher": {
"category": "vendor",
"contact_details": "information-security@sma.de",
"name": "SMA Solar Technology AG",
"namespace": "https://sma.de"
},
"references": [
{
"category": "external",
"summary": "SMA PSIRT",
"url": "https://www.sma.de/cybersicherheit/produktsicherheit"
},
{
"category": "external",
"summary": "CERT@VDE Security Advisories for SMA",
"url": "https://certvde.com/en/advisories/vendor/sma/"
},
{
"category": "self",
"summary": "VDE-2025-066: SMA: Directory Traversal in Sunny Boy - HTML",
"url": "https://certvde.com/en/advisories/VDE-2025-066"
},
{
"category": "self",
"summary": "VDE-2025-066: SMA: Directory Traversal in Sunny Boy - CSAF",
"url": "https://sma.csaf-tp.certvde.com/.well-known/csaf/white/2025/vde-2025-066.json"
}
],
"title": "SMA: Directory Traversal in Sunny Boy",
"tracking": {
"aliases": [
"VDE-2025-066"
],
"current_release_date": "2025-08-27T08:00:00.000Z",
"generator": {
"date": "2025-08-21T09:10:39.333Z",
"engine": {
"name": "Secvisogram",
"version": "2.5.33"
}
},
"id": "VDE-2025-066",
"initial_release_date": "2025-08-27T08:00:00.000Z",
"revision_history": [
{
"date": "2025-08-27T08:00:00.000Z",
"number": "1.0.0",
"summary": "Initial revision."
}
],
"status": "final",
"version": "1.0.0"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Sunny Boy 3.0",
"product": {
"name": "Sunny Boy 3.0",
"product_id": "CSAFPID-11001",
"product_identification_helper": {
"model_numbers": [
"SB3.0-1AV-41"
]
}
}
},
{
"category": "product_name",
"name": "Sunny Boy 3.6",
"product": {
"name": "Sunny Boy 3.6",
"product_id": "CSAFPID-11002",
"product_identification_helper": {
"model_numbers": [
"SB3.6-1AV-41"
]
}
}
},
{
"category": "product_name",
"name": "Sunny Boy 4.0",
"product": {
"name": "Sunny Boy 4.0",
"product_id": "CSAFPID-11003",
"product_identification_helper": {
"model_numbers": [
"SB4.0-1AV-41"
]
}
}
},
{
"category": "product_name",
"name": "Sunny Boy 5.0",
"product": {
"name": "Sunny Boy 5.0",
"product_id": "CSAFPID-11004",
"product_identification_helper": {
"model_numbers": [
"SB5.0-1AV-41"
]
}
}
},
{
"category": "product_name",
"name": "Sunny Boy 6.0",
"product": {
"name": "Sunny Boy 6.0",
"product_id": "CSAFPID-11005",
"product_identification_helper": {
"model_numbers": [
"SB6.0-1AV-41"
]
}
}
}
],
"category": "product_family",
"name": "Sony Boy"
}
],
"category": "product_family",
"name": "Hardware"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<3.10.27.R",
"product": {
"name": "Firmware <3.10.27.R",
"product_id": "CSAFPID-21001"
}
},
{
"category": "product_version",
"name": "3.10.27.R",
"product": {
"name": "Firmware 3.10.27.R",
"product_id": "CSAFPID-22001"
}
}
],
"category": "product_family",
"name": "Firmware"
}
],
"category": "vendor",
"name": "SMA Solar Technology AG"
}
],
"product_groups": [
{
"group_id": "CSAFGID-0001",
"product_ids": [
"CSAFPID-31001",
"CSAFPID-31002",
"CSAFPID-31003",
"CSAFPID-31004",
"CSAFPID-31005"
],
"summary": "Affected products."
},
{
"group_id": "CSAFGID-0002",
"product_ids": [
"CSAFPID-32001",
"CSAFPID-32002",
"CSAFPID-32003",
"CSAFPID-32004",
"CSAFPID-32005"
],
"summary": "Fixed products."
}
],
"relationships": [
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware <3.10.27.R installed on Sunny Boy 3.0",
"product_id": "CSAFPID-31001"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware <3.10.27.R installed on Sunny Boy 3.6",
"product_id": "CSAFPID-31002"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware <3.10.27.R installed on Sunny Boy 4.0",
"product_id": "CSAFPID-31003"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware <3.10.27.R installed on Sunny Boy 5.0",
"product_id": "CSAFPID-31004"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware <3.10.27.R installed on Sunny Boy 6.0",
"product_id": "CSAFPID-31005"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11005"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 3.10.27.R installed on Sunny Boy 3.0",
"product_id": "CSAFPID-32001"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 3.10.27.R installed on Sunny Boy 3.6",
"product_id": "CSAFPID-32002"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 3.10.27.R installed on Sunny Boy 4.0",
"product_id": "CSAFPID-32003"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 3.10.27.R installed on Sunny Boy 5.0",
"product_id": "CSAFPID-32004"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 3.10.27.R installed on Sunny Boy 6.0",
"product_id": "CSAFPID-32005"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11005"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-4459",
"cwe": {
"id": "CWE-23",
"name": "Relative Path Traversal"
},
"notes": [
{
"audience": "all",
"category": "description",
"text": "An authorized remote attacker can access files and directories outside the intended web root, potentially exposing sensitive system information of the affected Sunny Boy devices. ",
"title": "Vulnerability Description"
}
],
"product_status": {
"fixed": [
"CSAFPID-32001",
"CSAFPID-32002",
"CSAFPID-32003",
"CSAFPID-32004",
"CSAFPID-32005"
],
"known_affected": [
"CSAFPID-31001",
"CSAFPID-31002",
"CSAFPID-31003",
"CSAFPID-31004",
"CSAFPID-31005"
]
},
"remediations": [
{
"category": "vendor_fix",
"details": "Update Firmware to version 3.10.27.R or newer.",
"group_ids": [
"CSAFGID-0001"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"environmentalScore": 6.5,
"environmentalSeverity": "MEDIUM",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"temporalScore": 6.5,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"CSAFPID-31001",
"CSAFPID-31002",
"CSAFPID-31003",
"CSAFPID-31004",
"CSAFPID-31005"
]
}
],
"title": "CVE-2021-4459"
}
]
}