Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1325 CNY

100%
Buy Us a Coffee

CVE-2026-12222— Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow

CVSS 8.0 · High EPSS 0.37% · P29

Affected Version Matrix 1

VendorProductVersion RangeStatus
YealinkSIP-T46U108.86.0.118affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-12222

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was determined in Yealink SIP-T46U 108.86.0.118. Affected is the function mod_webd.BlueToothTest of the file /api/inner/bttest of the component Web FastCGI Service. Executing a manipulation of the argument btMac/pin/reserved can lead to stack-based buffer overflow. The attack needs to be done within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
YealinkSIP-T46U 108.86.0.118 cpe:2.3:a:yealink:sip-t46u:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-12222

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-12222

请登录查看更多情报信息。

Exploits & Public PoCs for CVE-2026-12222 (1)

Same Patch Batch · Yealink · 2026-06-15 · 6 CVEs total

CVE-2026-122208.0 HIGHYealink SIP-T46U Firmware Chunk Upload handler accupgradebychunk mod_upgrade.SparePartsUpl
CVE-2026-122188.0 HIGHYealink SIP-T46U Web FastCGI Service beforewifitest StartReportInformation stack-based ove
CVE-2026-122218.0 HIGHYealink SIP-T46U Firmware Chunk Upload upgrade sprintf stack-based overflow
CVE-2026-122196.3 MEDIUMYealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injecti
CVE-2026-122235.5 MEDIUMYealink SIP-T46U Web FastCGI Service tftpuploadiperf mod_webd.TFTPUploadIperf command inje

IV. Related Vulnerabilities

Same product: SIP-T46U
Same vendor: Yealink
Same weakness: CWE-121

V. Comments for CVE-2026-12222

No comments yet

Leave a comment