SEPTEMBER 19, 2026
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Case File

CVE-2026-80803

UNKNOWN · CVSS N/A EPSS 0.19%

Source: NVD + CISA KEV + EPSS · Published 2026-09-04 · Last synced 2026-09-19

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's NFC subsystem, specifically in the handling of responses from NFC-F devices, where an attacker can exploit a lack of bounds checking during a memory copy operation. This flaw allows a malicious NFC-F device to send an oversized response, potentially leading to a stack buffer overflow, which could compromise system stability or security. Organizations utilizing Linux systems with NFC capabilities should prioritize patching this vulnerability to mitigate the risk of exploitation.

CVE
CVE-2026-80803
Severity
UNKNOWN
CVSS
N/A
EPSS
0.19%
Linux

Original NVD 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).