Out-of-bounds read in Linux kernel - CVE-2026-43051
Published: May 2, 2026
Vulnerability identifier: #VU128862
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43051
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in wacom_intuos_bt_irq when processing Bluetooth HID reports. A remote attacker can send a specially crafted short report to disclose sensitive information.
Report ID 0x03 requires at least 22 bytes, and report ID 0x04 requires at least 32 bytes.
How to mitigate CVE-2026-43051
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/2f1763f62909ccb6386ac50350fa0abbf5bb16a9
- https://git.kernel.org/stable/c/3d78386b144453c47e81bf62dc3601b757f02d99
- https://git.kernel.org/stable/c/41026bcc0fdf82605205c27935ef719cbc07193b
- https://git.kernel.org/stable/c/5b5b9730111808410e404ceac2fabd32eef92fbd
- https://git.kernel.org/stable/c/8bd690ac1242332c73cba10dacdad6c6642bbb94
- https://git.kernel.org/stable/c/c8dc23c97680eebefde06da5858aaef1b37cf75d
- https://git.kernel.org/stable/c/d0ae84b3c9f3ea1a564eb1b7612113ca9fe8aada
- https://git.kernel.org/stable/c/fa8901cb1f0b2113a342db93bd5684b59fe99dcf