CVE-2026-90223 Linux kernel NFC llcp - Out-of-Bounds Read

Linux kernel NFC llcp contains an out-of-bounds read vulnerability caused by unbounded SNL TLV parsing in nfc_llcp_recv_snl(), letting nearby attackers cause memory corruption or denial of service, exploit requires NFC link activation.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out-of-Bounds Read
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix for bounded SNL TLV parsing and length checks.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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