CVE-2026-23246

wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration

CVSS 8.8 HIGHEPSS 0.3%

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux · Linux

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References

https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5 https://git.kernel.org/stable/c/650981e718e68005ca2760a6358134b8a98ebea4 https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400 https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15