CVE-2026-12218

A vulnerability was detected in Yealink SIP-T46U 108.87.50.1. The affected element is the function StartReportInformation of the file /api/inner/beforewifitest of the component Web FastCGI Service. The manipulation of the argument port results in stack-based buffer overflow. Access to the local network is required for this attack. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 8.0 HIGH
CVSS v2.0 7.7 HIGH

8.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.7^/10

CVSS v2.0 : HIGH

Vector : AV:A/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 5.1 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://cdn2.v50to.cc/T46U/T46U_beforewifitest_stack_overflow.zip
https://vuldb.com/cve/CVE-2026-12218
https://vuldb.com/submit/834193
https://vuldb.com/vuln/370861
https://vuldb.com/vuln/370861/cti

Configurations

No configuration.

History

15 Jun 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-15 06:16

Updated : 2026-06-15 20:42

NVD link : CVE-2026-12218

Mitre link : CVE-2026-12218

CVE.ORG link : CVE-2026-12218

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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