CVE-2026-12220 | BDVDB-2026-340261 Detail

Description#

A vulnerability has been found in Yealink SIP-T46U 108.86.0.118. This affects the function mod_upgrade.SparePartsUpload of the file /api/upgrade/accupgradebychunk of the component Firmware Chunk Upload handler. Such manipulation of the argument uid leads to stack-based buffer overflow. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.

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History#

1. Version 12026-06-15Record published in the CVE List.
2. Version 22026-06-27Most recent update recorded in the CVE List.