CVE-2026-23246

wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration

High · published March 18, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
22.0
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration

link_id is taken from the ML Reconfiguration element (control & 0x000f),

so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS

(15) elements, so index 15 is out-of-bounds. Skip subelements with

link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds

write.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00304 · 22.0th percentile
Published
2026-03-18T10:05Z
EPSS history
Timeline
  • 18 MAR 10:05Z
    wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
    cvelistv5