CVE-2026-98575
Received
Received - Intake
Out-of-Bounds Read in Linux Kernel NFC PN533 Driver
Vulnerability report for CVE-2026-98575, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-18
Last updated on: 2026-10-18
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()
frame->ccid.datalen is read directly from the USB response frame
and used, unchecked, as an index into frame->data[]. A malicious or
malfunctioning device can set this field to an arbitrary value,
causing the driver to read far outside the received buffer.
Bound ccid.datalen against the maximum possible ACR122 frame size
before using it. This replaces the existing datalen == 0 check,
since datalen < 2 already covers that case and additionally
rejects datalen == 1, which would still underflow the
"datalen - 2" offset used below.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc |
| Linux | Linux | 4.7 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
