CVE-2026-122116 · Infrastructure
NO FIX YET · SEE WHAT TO DO
Certain Yealink terminal devices running firmware before 2026-04-21 have an access control flaw in the Wi-Fi 802.1X PEAP network configuration function. An attacker with access to the device's configuration can read deployed 802.1X network authentication credentials.
first public Nov 4, 2026 · 1 source
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Yealink terminal devices with firmware before 2026-04-21 that use Wi-Fi 802.1X PEAP network access authentication are affected. The sources do not say which exact models are affected or what access level an attacker needs; teams not using 802.1X PEAP Wi-Fi on these devices can likely skip it.
Not affected if latest-firmware, no-802.1x-peap
Who cares 802.1x, peap, voip-phones, wi-fi, yealink
Certain Yealink terminal devices before 2026-04-21 contain an improper access control vulnerability in the Wi-Fi 802.1X PEAP network configuration function. This flaw exposes deployed 802.1X network access authentication credentials to unauthorized users. The latest Yealink firmware has addressed this vulnerability by restricting 802.1X configuration modification privileges to administrator accounts only by default.
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