Out-of-bounds write in Linux kernel - CVE-2026-43048
Published: May 2, 2026
Vulnerability identifier: #VU128859
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43048
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read and out-of-bounds write in hid_report_raw_event() when processing an incoming event buffer that is smaller than the associated report size. A local attacker can provide a crafted HID event buffer to cause a denial of service.
How to mitigate CVE-2026-43048
Install security update from vendor's repository.