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CVE-2026-80803

Unknown

Last modified

CVE-2026-80803 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: nfc: digital: clamp SENSF_RES length to the destination buffer digital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote NFC-F device response into the NFC_SENSF_RES_MAXSIZE-byte target.sensf_res field without an upper-bound check. A nearby malicious NFC-F device can send an oversized SENSF_RES response to overflow the stack-local struct nfc_target. Clamp resp->len to NFC_SENSF_RES_MAXSIZE before the copy. Found by 0sec automated security-research tooling (https://0sec.ai)..

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: digital: clamp SENSF_RES length to the destination buffer digital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote NFC-F device response into the NFC_SENSF_RES_MAXSIZE-byte target.sensf_res field without an upper-bound check. A nearby malicious NFC-F device can send an oversized SENSF_RES response to overflow the stack-local struct nfc_target. Clamp resp->len to NFC_SENSF_RES_MAXSIZE before the copy. Found by 0sec automated security-research tooling (https://0sec.ai).

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 8c0695e4998dd268ff2a05951961247b7e015651, < 6afb29751ee731e7f7a96feb8a15f91441e552ba; >= 8c0695e4998dd268ff2a05951961247b7e015651, < e886c63d2ca7108826076989103a1ffa8a0bb8f4; >= 8c0695e4998dd268ff2a05951961247b7e015651, < 4e942da2869bcd646353eef706b7dd82efeb9db5; >= 8c0695e4998dd268ff2a05951961247b7e015651, < d0756a98277e383c26fead988a96c91f0781cd7f; >= 8c0695e4998dd268ff2a05951961247b7e015651, < af4c0606f743e009254a8d252096855335ade85d; >= 8c0695e4998dd268ff2a05951961247b7e015651, < a56773e649ea99b344d6bbaf90f34c8e3fadef5d; >= 8c0695e4998dd268ff2a05951961247b7e015651, < a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6; >= 8c0695e4998dd268ff2a05951961247b7e015651, < 31aa28ed732f66ab83c40ef53d99791be69b85c4; >= 8c0695e4998dd268ff2a05951961247b7e015651, < 344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16
LinuxLinux3.13

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80803?
In the Linux kernel, the following vulnerability has been resolved: nfc: digital: clamp SENSF_RES length to the destination buffer digital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote NFC-F device response into the NFC_SENSF_RES_MAXSIZE-byte target.sensf_res field without an upper-bound check. A nearby malicious NFC-F device can send an oversized SENSF_RES response to overflow the stack-local struct nfc_target. Clamp resp->len to NFC_SENSF_RES_MAXSIZE before the copy. Found by 0sec automated security-research tooling (https://0sec.ai).
How severe is CVE-2026-80803?
Severity scoring for CVE-2026-80803 is pending analysis.
How do I fix CVE-2026-80803?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST