CVE-2026-98582
kernel: nfc: st21nfca: validate received frame size
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. The driver fails to properly validate the length of received frames when processing escape sequences. An attacker capable of sending crafted NFC frames could exploit this vulnerability to trigger an out-of-bounds memory read, leading to a system crash and Denial of Service (DoS) or potential kernel memory disclosure.
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