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Vendor Solution
We recommend that when enabling Wi-Fi 802.1X, you can restrict the access types of web users by updating security.web_limited_access_level via Auto Provision; for example: security.web_limited_access_level=user. Alternatively, refer to the Admin Guide to configure Wi-Fi permissions for the user account: network-wifi = 2, wifi = 2. Regarding this vulnerability, newer firmware versions of the device have, by default, restricted 802.1X-related function permissions to administrator-only.
Tracking
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Wed, 04 Nov 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Yealink Wi‑Fi 802.1X Credential Leakage via Improper Access Control |
Wed, 04 Nov 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 04 Nov 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
No data.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-11-04T20:00:57.668Z
Reserved: 2026-11-04T17:47:03.995Z
Link: CVE-2026-122116
Updated: 2026-11-04T19:59:20.848Z
Status : Received
Published: 2026-11-04T18:17:43.473
Modified: 2026-11-04T20:19:11.870
Link: CVE-2026-122116
No data.
OpenCVE Enrichment
Updated: 2026-11-04T20:45:07Z
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CWE-863
Incorrect Authorization