CANONICALVERIFIED
USN-8819-2: Linux kernel vulnerabilities
Checked 28 Sep 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.
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UBUNTU SECURITY NOTICECANONICALVERIFIED
PUBLISHER UPDATE · USN-8819-2
USN-8819-2 release notes and known issues
USN-8819-2: Linux kernel vulnerabilities
Scope: Ubuntu. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.
Summary
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network file system (NFS) server daemon; - IPv6 networking; - Netfilter; (CVE-2025-38724, CVE-2026-53131, CVE-2026-53221)
Improvements and security content
- Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network file system (NFS) server daemon; - IPv6 networking; - Netfilter; (CVE-2025-38724, CVE-2026-53131, CVE-2026-53221)
Known issues
Publisher statementNot stated. The verified publisher record does not contain a known-issues statement.
Affected products and versions
Products
- Ubuntu
Affected versions
- See the official publisher source for applicability.
Fixed versions or updates
- No fixed version is stated in this record.
Recommended action
Review the official publisher document before deployment.
Related vulnerabilities
BlackTree CVE IntelligenceLifecycle connections
These links connect the publisher update to related Lifecycle records without treating the update publication date as an end-of-support date.