CVE-2026-12222

8.0 HIGH

A vulnerability was determined in Yealink SIP-T46U 108.86.0.118

Published: 2026-06-15 · Last updated: 2026-06-15

Severity and scoring

CVSS: 8.0 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-119, CWE-121

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

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-12222
[Other]http://cdn2.v50to.cc/T46U/T46U_mod_webd_BlueToothTest_off_by_one.zip
[Other]https://vuldb.com/cve/CVE-2026-12222
[Other]https://vuldb.com/submit/834602
[Other]https://vuldb.com/vuln/370865
[Other]https://vuldb.com/vuln/370865/cti

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CVE-2026-12221 — A vulnerability was found in Yealink SIP-T46U 108.86.0.118 (8.0 HIGH)
CVE-2026-12220 — A vulnerability has been found in Yealink SIP-T46U 108.86.0.118 (8.0 HIGH)