CVE-2026-122118
Full vulnerability record from the local CVENow database.
Description
In certain Yealink products before 2026-04-15, when the Wi-Fi AP function is enabled, a default 8-digit numeric PSK with insufficient strength is used. Attackers can exploit this weakness via brute-force attacks to gain unauthorized network access and intercept Wi-Fi traffic.
Severity
HIGH
CVSS score
7.4
(v3.1)
Vulnerability status
Received
Source identifier
Published
2026-11-04 18:17:43.667000
Last modified
2026-11-04 20:19:12.053000
View original CVE JSON
{
"id": "CVE-2026-122118",
"sourceIdentifier": "[email protected]",
"published": "2026-11-04T18:17:43.667",
"lastModified": "2026-11-04T20:19:12.053",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In certain Yealink products before 2026-04-15, when the Wi-Fi AP function is enabled, a default 8-digit numeric PSK with insufficient strength is used. Attackers can exploit this weakness via brute-force attacks to gain unauthorized network access and intercept Wi-Fi traffic."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Yealink",
"product": "AVHub",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "153.135.0.76",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "UVC86",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "151.435.0.66",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "SmartVision 80",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "321.435.0.86",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "UVC40 E2",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "319.410.0.66",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "MeetingBorard C",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "328.321.0.40",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "MeetingBar A10",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "278.320.0.86",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "MeetingBar A40",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "289.320.0.81",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "MeetingBar A50",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "323.320.0.54",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 4.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-04T19:54:06.590482Z",
"id": "CVE-2026-122118",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-334"
}
]
}
],
"references": [
{
"url": "https://www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulnerability",
"source": "[email protected]"
}
]
}