High severity · published Mar 18, 2026
CVE-2026-23246
wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
8.8
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
6.5.1 before 6.6.130; 6.7 before 6.12.77; 6.13 before 6.18.17; 6.19 before 6.19.7; 6.5; 7.0 · source: NVD
LI
Linux · Linux
8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c before 650981e718e68005ca2760a6358134b8a98ebea4; 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c before bfde158d5d1322c0c2df398a8d1ccce04943be2e; 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c before f35ceec54d48e227fa46f8f97fd100a77b8eab15; 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c before d58d71c2167601762351962b9604808d3be94400; 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c before 162d331d833dc73a3e905a24c44dd33732af1fc5; 6.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23246
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23246
Patch
https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5
Patch
https://git.kernel.org/stable/c/650981e718e68005ca2760a6358134b8a98ebea4
Patch
https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e
Patch
https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400
Patch
https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15
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