CVE-2026-12222

high

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.

References

https://vuldb.com/vuln/370865/cti

https://vuldb.com/vuln/370865

https://vuldb.com/submit/834602

https://vuldb.com/cve/CVE-2026-12222

http://cdn2.v50to.cc/T46U/T46U_mod_webd_BlueToothTest_off_by_one.zip

Details

Source: Mitre, NVD

Published: 2026-06-15

Updated: 2026-06-15

Risk Information

CVSS v2

Base Score: 7.7

Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 8.6

Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00371