CVE-2025-62842 (GCVE-0-2025-62842)
Vulnerability from cvelistv5 – Published: 2026-01-02 15:51 – Updated: 2026-01-05 20:38
VLAI?
Title
HBS 3 Hybrid Backup Sync
Summary
An external control of file name or path vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read or modify files or directories.
We have already fixed the vulnerability in the following version:
HBS 3 Hybrid Backup Sync 26.2.0.938 and later
Severity ?
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| QNAP Systems Inc. | HBS 3 Hybrid Backup Sync |
Affected:
26.1.x , < 26.2.0.938
(custom)
|
Credits
Pwn2Own 2025 - Team DDOS
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-62842",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-05T20:31:31.402444Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-05T20:38:14.967Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "HBS 3 Hybrid Backup Sync",
"vendor": "QNAP Systems Inc.",
"versions": [
{
"lessThan": "26.2.0.938",
"status": "affected",
"version": "26.1.x",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:qnap_systems_inc.:hbs_3_hybrid_backup_sync:*:*:*:*:*:*:*:*",
"versionEndExcluding": "26.2.0.938",
"versionStartIncluding": "26.1.x",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Pwn2Own 2025 - Team DDOS"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An external control of file name or path vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read or modify files or directories.\u003cbr\u003e\u003cbr\u003eWe have already fixed the vulnerability in the following version:\u003cbr\u003eHBS 3 Hybrid Backup Sync 26.2.0.938 and later\u003cbr\u003e"
}
],
"value": "An external control of file name or path vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read or modify files or directories.\n\nWe have already fixed the vulnerability in the following version:\nHBS 3 Hybrid Backup Sync 26.2.0.938 and later"
}
],
"impacts": [
{
"capecId": "CAPEC-76",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-76"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "PHYSICAL",
"baseScore": 7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-73",
"description": "CWE-73",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-02T15:51:40.904Z",
"orgId": "2fd009eb-170a-4625-932b-17a53af1051f",
"shortName": "qnap"
},
"references": [
{
"url": "https://www.qnap.com/en/security-advisory/qsa-25-46"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "We have already fixed the vulnerability in the following version:\u003cbr\u003eHBS 3 Hybrid Backup Sync 26.2.0.938 and later\u003cbr\u003e"
}
],
"value": "We have already fixed the vulnerability in the following version:\nHBS 3 Hybrid Backup Sync 26.2.0.938 and later"
}
],
"source": {
"advisory": "QSA-25-46",
"discovery": "EXTERNAL"
},
"title": "HBS 3 Hybrid Backup Sync",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "2fd009eb-170a-4625-932b-17a53af1051f",
"assignerShortName": "qnap",
"cveId": "CVE-2025-62842",
"datePublished": "2026-01-02T15:51:40.904Z",
"dateReserved": "2025-10-24T02:43:45.372Z",
"dateUpdated": "2026-01-05T20:38:14.967Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-62842\",\"sourceIdentifier\":\"security@qnapsecurity.com.tw\",\"published\":\"2026-01-02T16:17:00.710\",\"lastModified\":\"2026-01-02T16:45:26.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An external control of file name or path vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read or modify files or directories.\\n\\nWe have already fixed the vulnerability in the following version:\\nHBS 3 Hybrid Backup Sync 26.2.0.938 and later\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security@qnapsecurity.com.tw\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"PHYSICAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security@qnapsecurity.com.tw\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-73\"}]}],\"references\":[{\"url\":\"https://www.qnap.com/en/security-advisory/qsa-25-46\",\"source\":\"security@qnapsecurity.com.tw\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-62842\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-05T20:31:31.402444Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-05T20:31:32.068Z\"}}], \"cna\": {\"title\": \"HBS 3 Hybrid Backup Sync\", \"source\": {\"advisory\": \"QSA-25-46\", \"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Pwn2Own 2025 - Team DDOS\"}], \"impacts\": [{\"capecId\": \"CAPEC-76\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-76\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 7, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"PHYSICAL\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"QNAP Systems Inc.\", \"product\": \"HBS 3 Hybrid Backup Sync\", \"versions\": [{\"status\": \"affected\", \"version\": \"26.1.x\", \"lessThan\": \"26.2.0.938\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"We have already fixed the vulnerability in the following version:\\nHBS 3 Hybrid Backup Sync 26.2.0.938 and later\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"We have already fixed the vulnerability in the following version:\u003cbr\u003eHBS 3 Hybrid Backup Sync 26.2.0.938 and later\u003cbr\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://www.qnap.com/en/security-advisory/qsa-25-46\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An external control of file name or path vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read or modify files or directories.\\n\\nWe have already fixed the vulnerability in the following version:\\nHBS 3 Hybrid Backup Sync 26.2.0.938 and later\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An external control of file name or path vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read or modify files or directories.\u003cbr\u003e\u003cbr\u003eWe have already fixed the vulnerability in the following version:\u003cbr\u003eHBS 3 Hybrid Backup Sync 26.2.0.938 and later\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-73\", \"description\": \"CWE-73\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:qnap_systems_inc.:hbs_3_hybrid_backup_sync:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"26.2.0.938\", \"versionStartIncluding\": \"26.1.x\"}], \"operator\": \"OR\"}], \"operator\": \"OR\"}], \"providerMetadata\": {\"orgId\": \"2fd009eb-170a-4625-932b-17a53af1051f\", \"shortName\": \"qnap\", \"dateUpdated\": \"2026-01-02T15:51:40.904Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-62842\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T20:38:14.967Z\", \"dateReserved\": \"2025-10-24T02:43:45.372Z\", \"assignerOrgId\": \"2fd009eb-170a-4625-932b-17a53af1051f\", \"datePublished\": \"2026-01-02T15:51:40.904Z\", \"assignerShortName\": \"qnap\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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.
Loading…
Loading…