SB20260625204 - Improper access control in Linux kernel psp
Published: June 25, 2026
Security Bulletin ID
SB20260625204
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2026-52978)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to modify shared device state.
The vulnerability exists due to improper access control in the psp netlink dev-set and key-rotate operations when handling netlink requests. A remote user can send crafted netlink requests to modify shared device state.
The only access check verifies network namespace membership.
Remediation
Install update from vendor's website.