Strix
72.6K

CVE-2026-98577

Unknown

Last modified

CVE-2026-98577 is a vulnerability of currently unknown severity. 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()..

Description

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().

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < 0c83a8a45fed256ccc5fe7160b436b671fc79fb8; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < aa555ed5ed0d15efbaf27e0e9f152a6df715278a; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < 6fad2c34d451d11a9f3f946cae1105fee91d96b8; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < bf41af8f910cbb5d776a1dfa0671d31a7e262e28; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < 0a0412745c86acd089c6460da715ab966b1615e7; >= d646960f7986fefb460a2b062d5ccc8ccfeacc3a, < 408cff6bd60636df201274d320edfdfde9ed41db
LinuxLinux3.3

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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().
How severe is CVE-2026-98577?
Severity scoring for CVE-2026-98577 is pending analysis.
How do I fix CVE-2026-98577?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-98577?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST