Skip to content
Multiple Ubuntu Linux Kernel Vulnerabilities Addressed in Recent Updates

Multiple Ubuntu Linux Kernel Vulnerabilities Addressed in Recent Updates

First seen 10 Nov 2026, 12:13 UTC • •
API

Article Content

Browse articles
ThreatCluster AI
ThreatCluster •November 10, 2026 at 12:15 UTC
  • •Ubuntu kernel updates released on November 10, 2026, address multiple vulnerabilities.
  • •Critical vulnerabilities include CVE-2026-63940 and CVE-2026-74350, with CVSS scores of 9.3 and 9.8.
  • •Affected systems include Ubuntu 18.04, 20.04, and 22.04 LTS across various cloud platforms.

On November 10, 2026, Ubuntu released kernel updates addressing several security vulnerabilities across various versions, including 18.04, 20.04, and 22.04 LTS. These updates fix issues related to networking and filesystems, as well as specific flaws in the x86 architecture and OCFS2 filesystem. Notably, CVE-2026-63940 and CVE-2026-74350, both rated critical with CVSS scores of 9.3 and 9.8 respectively, were among the vulnerabilities patched. The updates affect multiple cloud environments, including AWS, Azure, and GCP systems. Users are advised to update their systems promptly to mitigate potential exploitation risks. The updates require a reboot to apply changes, and users must recompile any third-party kernel modules due to ABI changes. The vulnerabilities could allow attackers to compromise affected systems if left.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 4h ago How this analysis works

Timeline

2026-07-19
CVE-2026-63940 published
CVE-2026-63940, a critical vulnerability, was published with a CVSS score of 9.3.
Linuxsecurity
2026-08-15
CVE-2026-74350 published
CVE-2026-74350, another critical vulnerability, was published with a CVSS score of 9.8.
Linuxsecurity
2026-11-10
Ubuntu kernel updates released
Updates released to fix multiple vulnerabilities in Ubuntu kernel across versions 18.04, 20.04, and 22.04 LTS.
Linuxsecurity

More articles in this cluster (4)

Following this threat?

Track Amazon Web Services and CVE-2025-21656 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.

Free account · no card needed

Extracted Entities (20)

1 / 2

Common questions

Which Ubuntu versions are affected?
The vulnerabilities affect Ubuntu 18.04, 20.04, and 22.04 LTS.
What are the critical CVEs associated with this update?
The critical CVEs include CVE-2026-63940 and CVE-2026-74350, with CVSS scores of 9.3 and 9.8.
What should users do after applying the updates?
Users need to reboot their systems to ensure all changes are applied and recompile any third-party kernel modules.