Out-of-bounds read in Linux kernel - CVE-2026-64237
Published: July 27, 2026
Vulnerability identifier: #VU139773
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-64237
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in the elan_i2c firmware update handler when processing a crafted firmware file. A local user can provide a specially crafted firmware file to disclose sensitive information.
How to mitigate CVE-2026-64237
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/331d49b4e1c9efe4479bbd22922dfcdd8c64be7b
- https://git.kernel.org/stable/c/3b37190ad3ded3a15fb1dbfc4f26df520a3e59bb
- https://git.kernel.org/stable/c/47b52b98edfe34d0249e72f815215ef24311c3a3
- https://git.kernel.org/stable/c/48b0aa9c08a3ac8e0c0345b7ca581f552324e460
- https://git.kernel.org/stable/c/76b0d0baa9ae9c60e726bbe1b6ff0bec2c993634
- https://git.kernel.org/stable/c/bf769358419e00344c1b16fa034d058f563d46a1
- https://git.kernel.org/stable/c/c2c3b33b3c0bf2c9427c0926817ef5ffac50de6f
- https://git.kernel.org/stable/c/d97baee9590edf303b3eca432e61de9320834fe1