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Multiple Vulnerabilities in Linux Kernels Affecting Red Hat and Ubuntu Systems

Multiple Vulnerabilities in Linux Kernels Affecting Red Hat and Ubuntu Systems

First seen 3 Aug 2026, 06:02 UTC

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ThreatCluster AI
ThreatCluster August 4, 2026 at 05:50 UTC
  • Multiple vulnerabilities in Linux kernel affect Red Hat and Ubuntu systems.
  • CVE-2023-45896 allows attackers to exploit NTFS file system for sensitive data exposure.
  • Immediate updates are recommended to mitigate risks from these vulnerabilities.

Recent updates have disclosed multiple vulnerabilities in the Linux kernel affecting Red Hat and Ubuntu systems. Key vulnerabilities include CVE-2023-45896, which allows attackers to exploit the NTFS file system for sensitive information disclosure, and CVE-2025-54505, which affects AMD processors during speculative execution. These vulnerabilities could lead to privilege escalation and information leaks. Red Hat has issued several advisories for their kernel updates across different versions, emphasizing the importance of applying these patches promptly. Both Ubuntu and Red Hat systems are at risk, with potential impacts on sensitive data security. Users are advised to update their systems immediately to mitigate these risks.

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Timeline

2024-08-28
CVE-2023-45896 published
Vulnerability in NTFS file system allows out-of-bounds read, risking sensitive information exposure.
ubuntu.com
2026-04-19
First public PoC for CVE-2025-54505
Proof of concept released for AMD processor vulnerability affecting speculative execution.
ubuntu.com
2026-04-27
CVE-2025-54505 published
AMD processor vulnerability disclosed, allowing potential sensitive information exposure.
ubuntu.com
2026-05-15
CVE-2025-54518 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-08-03
Red Hat kernel updates released
Red Hat issues kernel updates for multiple versions to address critical vulnerabilities.
access.redhat.com
2026-08-03
Ubuntu kernel updates released
Ubuntu releases security notices for kernel vulnerabilities, urging users to update immediately.
ubuntu.com

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