Out-of-bounds read in Linux kernel - CVE-2026-64444
Published: July 27, 2026
Vulnerability identifier: #VU139490
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-64444
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in OnAssocRsp() in the rtl8723bs driver when parsing a crafted association response frame. A remote attacker can send a specially crafted association response frame to disclose sensitive information.
The issue can be triggered by a malicious access point through a truncated information element in the frame.
Affected software
Linux kernel
How to mitigate CVE-2026-64444
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/0406d746574e875d8778552eb674fcfbf5330bfb
- https://git.kernel.org/stable/c/04f612dc03427e0b1ac80a2611b5ac0ba93ac446
- https://git.kernel.org/stable/c/0970dd47726a57e52013594e9fbf667586eb3673
- https://git.kernel.org/stable/c/1a52a05471494546f955a58e8c170c0c796c52d5
- https://git.kernel.org/stable/c/7e7741c8315e4160aead00a60cdd6f81ab880717
- https://git.kernel.org/stable/c/889ca6000ac7fa73457b041848fcb08e0d51b809
- https://git.kernel.org/stable/c/f9654207e92283e0acac5d64fe5f8835383b5a23