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Fencer Intel
medium 4.3

CVE-2026-122116 json

Certain Yealink terminal devices before 2026-04-21 contain an improper access control vulnerability in the Wi-Fi 802.1X PEAP network config…

published 5d ago modified 5d ago also EUVD-2026-117010

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

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.

Patch / fix

  • Yealink T3XW Series Phones 124.87.0.22
  • Yealink T4X Series Phones 108.87.0.23
  • Yealink T5X Series Phones 96.87.0.24
  • Yealink T7X Series Phones 185.87.0.39
  • Yealink SIP-T85W、SIP-T87W 185.87.0.39
  • Yealink AX83H、AX86R 180.87.0.15
  • Yealink CP925 148.87.0.41
  • Yealink CP935W 149.87.0.41
  • Yealink MP E2 Teams Series 176.15.0.191
  • Yealink VP59 Teams 91.15.1.37
  • Yealink SIP-T58W 150.87.0.22
  • Yealink VP59 91.87.0.27
  • Yealink CP965 143.87.0.27

Is CVE-2026-122116 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-122116 updated cvss 6.5

Yealink: Yealink: Information disclosure via improper access control in Wi-Fi 802.1X configuration

  • Red Hat Migration Toolkit for Virtualization migration-toolkit-virtualization/mtv-virt-v2v-rhel9, migration-toolkit-virtualization/mtv-virt-v2v-rhel10, migration-toolkit-virtualization/mtv-deep-inspection-rhel9, migration-toolkit-virtualization/mtv-deep-inspection-rhel10 Red Hat OpenShift API for Data Protection oadp/oadp-vmfr-access-rhel9 Red Hat Certification Program for Red Hat Enterprise Linux 9 rhcertification/redhat-certification-baremetal Red Hat Enterprise Linux 9 rhel9-eus/rhel-9.4-bootc Red Hat OpenShift Container Platform 4 openshift4/driver-toolkit-rhel8, openshift4/driver-toolkit-rhel9, openshift4/ose-ironic-machine-os-downloader-rhel9 Red Hat OpenShift Container Platform 5 openshift5/driver-toolkit-rhel9, openshift5/driver-toolkit-rhel10, openshift5/ose-ironic-machine-os-downloader-rhel9
    +3 more products
    Red Hat OpenStack Platform 16.2 rhosp-rhel8/openstack-nova-compute, rhosp-rhel8/openstack-nova-libvirt, rhosp-rhel8/openstack-nova-compute-ironic Red Hat OpenStack Platform 17.1 rhosp-rhel9/openstack-nova-compute, rhosp-rhel9/openstack-nova-libvirt, rhosp-rhel9/openstack-nova-compute-ironic Red Hat OpenStack Platform 18.0 rhoso/openstack-nova-compute-rhel9
    under investigation

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5d ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected products

  • Yealink T3XW Series Phones
  • Yealink T4X Series Phones
  • Yealink T5X Series Phones
  • Yealink T7X Series Phones
  • Yealink SIP-T85W、SIP-T87W
  • Yealink AX83H、AX86R
  • Yealink CP925
  • Yealink CP935W
  • Yealink MP E2 Teams Series
  • Yealink VP59 Teams
  • Yealink SIP-T58W
  • Yealink VP59
  • Yealink CP965

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.