CVE-2026-122116
Description
A flaw was found in Yealink terminal devices. An improper access control vulnerability in the Wi-Fi 802.1X Protected Extensible Authentication Protocol (PEAP) configuration allows unauthorized users to access network settings without administrative privileges. An attacker can exploit this issue to view and retrieve stored network authentication credentials, potentially enabling unauthorized access to enterprise wireless networks.
Statement
This vulnerability is rated as having a Moderate severity impact because an authenticated user on the local device network can retrieve sensitive wireless credentials without requiring administrative privileges, compromising network authentication confidentiality. Red Hat products are not affected by this flaw as Red Hat does not distribute or maintain Yealink terminal hardware, firmware, or VoIP phone software.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | N/A | 4.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | High | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | None | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity
A user can access restricted functionality and/or sensitive information that may include administrative functionality and user accounts.
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