CVE-2026-98582Medium· 6.5▾ SunlitA 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
0.2%
— → 6.5
none → medium
0.2% → 0.2%
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.
kernel: nfc: st21nfca: validate received frame size — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.
Not affected:
Refer to the advisory for fix availability.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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