Out-of-bounds read in Linux kernel - CVE-2026-43213
Published: May 7, 2026
Vulnerability identifier: #VU130527
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2026-43213
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds access in the rtw89_pci TX release report handling when processing an abnormal sequence number in a TX release report. A local attacker can trigger an abnormal TX release report to cause a denial of service.
The issue can lead to a kernel NULL pointer dereference.
Affected software
Linux kernel
How to mitigate CVE-2026-43213
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3