CVE-2026-98575
N/AIn 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.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 11th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-98575/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-98575/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/8db3b1e012a8b25078dfa1efabe3d0cd2916dcba
- https://git.kernel.org/stable/c/74b3fbc60907ee97e3af3249091f57351b53a6d6
- https://git.kernel.org/stable/c/8a0f1bb790d964893db7fc59febda9a534db07b3
- https://git.kernel.org/stable/c/ea82b7576793219fa10a8b545f8338998b2a9ce2
- https://git.kernel.org/stable/c/72b8b2126e854d6756a1aa4bdc66d7457b832294
- https://git.kernel.org/stable/c/e72cbedc4596e808d22dd2b9fff666ece76f8dd6
- https://git.kernel.org/stable/c/2450a388367231fb7dd798538f393af227c00c4d
- https://git.kernel.org/stable/c/b61732f47316d45f27706db7812950145d3327b5