CVE-2026-98578
Published Oct 18, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: nfc: st21nfca: validate ISO15693 inventory length The ISO15693 inventory helper removes a two-byte prefix without checking that it exists, then accepts a one-byte remainder before reading data[1] as the DSFID. Require the prefix and at least two remaining bytes before copying the UID data and reading the DSFID.
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References
Other References
https://git.kernel.org/stable/c/3af2ea4035581a1607d9830779c187a0c7e225aa
https://git.kernel.org/stable/c/57d183764f3002f9625ee4deeeb20716c519534e
https://git.kernel.org/stable/c/6353dae51bc9b3cad13c9d890b53311a46c96b4e
https://git.kernel.org/stable/c/7f2ea5ed588c03d481f0301e6c3d4240132383fb
https://git.kernel.org/stable/c/9fa21b0f78adb514e3bd96a505ddb752e9727ff3
https://git.kernel.org/stable/c/a86987d03a4d39acdbe4533d83db4d656ea36c59
https://git.kernel.org/stable/c/e47b2a350bb0ff123434ec5484c6dc3333b0727c
https://git.kernel.org/stable/c/fdd95e819d828c975aaeb258a3fed5dd7fd136d0
Frequently Asked Questions
What is CVE-2026-98578? +
In the Linux kernel, the following vulnerability has been resolved:
nfc: st21nfca: validate ISO15693 inventory length
The ISO15693 inventory helper removes a two-byte prefix without checking
that it exists, then accepts a one-byte remainder before reading data[1] as
the DSFID.
Require the prefix and at least two remaining bytes before copying the UID
data and reading the DSFID.
How do I check if I'm vulnerable to CVE-2026-98578? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.