Linux Security Updates – 15 June 2026

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Linux has released security updates to address several vulnerabilities in Linux Kernel.

The addressed vulnerabilities allow the attacker to bypass security restrictions, perform denial of service attacks, obtain sensitive information, gain elevated privileges, execute arbitrary code, and gain access to the affected system.

Sample of the addressed vulnerabilities:

1. Linux Kernel Race Condition in Translation Lookaside Buffer Invalidation (TLBI) Operations Vulnerability (CVE-2025-10263):

  • CVSS: 8.4
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Consequences: Gain Privileges

2. Linux Kernel Guest-to-Host Escape Vulnerability (CVE-2026-46316):

  • CVSS: 7.0
  • Attack Vector: Local
  • Attack Complexity: High
  • Privileges Required: Low
  • User Interaction: None
  • Consequences: Denial of Service

It should be highlighted that security researchers disclosed a proof-of-concept (PoC) exploit that exists in the wild for the vulnerability “CVE-2026-46316”.

Vulnerabilities
Mitigations

The enterprise should deploy the patches as soon as the testing phase is completed and should check with its vendors for updates, if any.

Below is a sample of the distributors’ fixes:

References