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Vulnerabilities
Vulnerability

CVE-2026-63943

Reference data from vuln.mlab.sh, coverage from our own index.

CVSS
5.5 Medium
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.20%
Risk score
5.4
Published
2026-07-19
Status
Published

In the Linux kernel, the following vulnerability has been resolved: Input: xpad - fix out-of-bounds access for Share button xpadone_process_packet() receives len directly from urb->actual_length and uses it to index the share-button byte at data[len - 18] or data[len - 26]. Since both len and data[0] are under the device's control, a broken controller can send a GIP_CMD_INPUT packet with actual_length < 18 (e.g. 5 bytes) and reach this code path, causing accesses beyond the actual array. Fix this by calculating the offset and checking bounds against the packet length. A flaw was found in the Linux kernel's xpad input driver. A local attacker with a specially crafted or malicious Xbox One controller could send a malformed input packet. This could lead to an out-of-bounds read, potentially causing a denial of service (DoS) or information disclosure.

Weaknesses

CWE-125

Coverage 5

Advisories and references