CVE-2026-98578
kernel: nfc: st21nfca: validate ISO15693 inventory length
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's ST21NFCA Near Field Communication (NFC) driver. This vulnerability allows a Denial of Service (DoS) when the system encounters malformed wireless NFC responses. A nearby attacker with a crafted NFC device can transmit a truncated ISO 15693 inventory response, which the driver processes without verifying minimum length requirements. This causes an out-of-bounds memory read, leading to a kernel crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-125 · Out-of-bounds Read