CVE-2026-98577

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() nfc_llcp_wks_sap() compares only service_name_len bytes, so a short service_name like "u" matches longer WKS strings like "urn:nfc:sn:snep". Fix by requiring exact length match before strncmp().

EPSS

0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)

Published

2026-10-18

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/0a0412745c86acd089c6460da715ab966b1615e7
• https://git.kernel.org/stable/c/0c83a8a45fed256ccc5fe7160b436b671fc79fb8
• https://git.kernel.org/stable/c/32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8
• https://git.kernel.org/stable/c/408cff6bd60636df201274d320edfdfde9ed41db
• https://git.kernel.org/stable/c/6fad2c34d451d11a9f3f946cae1105fee91d96b8

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