What’s Vulnerable › Vulnerabilities

CVE-2026-98578: nfc: st21nfca: validate ISO15693 inventory length

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19

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.

Affected products

• Linux kernel: 3.16 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

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

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