CVE-2026-122116
Full vulnerability record from the local CVENow database.
Description
Certain Yealink terminal devices before 2026-04-21 contain an improper access control vulnerability in the Wi-Fi 802.1X PEAP network configuration function. This flaw exposes deployed 802.1X network access authentication credentials to unauthorized users. The latest Yealink firmware has addressed this vulnerability by restricting 802.1X configuration modification privileges to administrator accounts only by default.
Severity
MEDIUM
CVSS score
4.3
(v3.1)
Vulnerability status
Received
Source identifier
Published
2026-11-04 18:17:43.473000
Last modified
2026-11-04 20:19:11.870000
View original CVE JSON
{
"id": "CVE-2026-122116",
"sourceIdentifier": "[email protected]",
"published": "2026-11-04T18:17:43.473",
"lastModified": "2026-11-04T20:19:11.870",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Certain Yealink terminal devices before 2026-04-21 contain an improper access control vulnerability in the Wi-Fi 802.1X PEAP network configuration function. This flaw exposes deployed 802.1X network access authentication credentials to unauthorized users. The latest Yealink firmware has addressed this vulnerability by restricting 802.1X configuration modification privileges to administrator accounts only by default."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Yealink",
"product": "T3XW Series Phones",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "124.85.0.1",
"lessThan": "124.87.0.22",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "T4X Series Phones",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "108.85.0.1",
"lessThan": "108.87.0.23",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "T5X Series Phones",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "96.85.0.1",
"lessThan": "96.87.0.24",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "T7X Series Phones",
"defaultStatus": "unaffected",
"versions": [
{
"version": "185.87.0.5",
"lessThan": "185.87.0.39",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "SIP-T85W、SIP-T87W",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "185.87.0.5",
"lessThan": "185.87.0.39",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "AX83H、AX86R",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "180.86.0.1",
"lessThan": "180.87.0.15",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "CP925",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "148.85.0.1",
"lessThan": "148.87.0.41",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "CP935W",
"defaultStatus": "unaffected",
"platforms": [
"Linux"
],
"versions": [
{
"version": "149.85.0.1",
"lessThan": "149.87.0.41",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "MP E2 Teams Series",
"defaultStatus": "unaffected",
"platforms": [
"Android"
],
"versions": [
{
"version": "176.15.0.1",
"lessThan": "176.15.0.191",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "VP59 Teams",
"defaultStatus": "unaffected",
"platforms": [
"Android"
],
"versions": [
{
"version": "91.15.0.1",
"lessThan": "91.15.1.37",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "SIP-T58W",
"defaultStatus": "unaffected",
"platforms": [
"Android"
],
"versions": [
{
"version": "150.86.0.5",
"lessThan": "150.87.0.22",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "VP59",
"defaultStatus": "unaffected",
"platforms": [
"Android"
],
"versions": [
{
"version": "91.86.0.5",
"lessThan": "91.87.0.27",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Yealink",
"product": "CP965",
"defaultStatus": "unaffected",
"platforms": [
"Android"
],
"versions": [
{
"version": "143.86.0.5",
"lessThan": "143.87.0.27",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-04T19:57:46.241561Z",
"id": "CVE-2026-122116",
"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-863"
}
]
}
],
"references": [
{
"url": "https://www.yealink.com/en/trust-center/security-bulletins/wifi-8021x-peap-authentication-credential-leakage-vulnerability",
"source": "[email protected]"
}
]
}