Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of the diagnostic component.
PUBLISHED5.2
Affected products
n/a - AFFECTED
References
yealink.com
http://yealink.com
drive.google.com
https://drive.google.com/file/d/1MpxnCL4koKupqWWDmY3ljlybjIPD8ieD/view?usp=sharing
GitHub Security Advisories
GHSA-8cpr-48rw-5rrc
Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged...
https://github.com/advisories/GHSA-8cpr-48rw-5rrcYealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of the diagnostic component.
JSON source
https://cveawg.mitre.org/api/cve/CVE-2025-66737Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-66737",
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"dateUpdated": "2025-12-26T16:39:10.938Z",
"dateReserved": "2025-12-08T00:00:00.000Z",
"datePublished": "2025-12-26T00:00:00.000Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre",
"dateUpdated": "2025-12-26T16:16:46.401Z"
},
"descriptions": [
{
"lang": "en",
"value": "Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of the diagnostic component."
}
],
"affected": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"version": "n/a",
"status": "affected"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "n/a",
"type": "text"
}
]
}
],
"references": [
{
"url": "http://yealink.com"
},
{
"url": "https://drive.google.com/file/d/1MpxnCL4koKupqWWDmY3ljlybjIPD8ieD/view?usp=sharing"
}
]
},
"adp": [
{
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-12-26T16:39:10.938Z"
},
"title": "CISA ADP Vulnrichment",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-23 Relative Path Traversal",
"cweId": "CWE-23",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM"
}
},
{}
]
}
]
}
}