Resource management error in Linux kernel - CVE-2026-43500
Published: May 8, 2026 / Updated: May 25, 2026
Vulnerability identifier: #VU130759
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/U:Amber
CVE-ID: CVE-2026-43500
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The RxRPC Page-Cache Write vulnerability exists due to improper management of internal resources. A local user can execute arbitrary code with root privileges.
Note, this vulnerability is one of two issues described as Dirty Frag.
How to mitigate CVE-2026-43500
Install update from vendor's repository.