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Ubuntu Security NoticesUSN-8819-3

USN-8819-3: Linux kernel vulnerabilities

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)

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Scope

What the vendor says is affected

The collected bulletin did not provide a separate affected-products list. Check the original bulletin before making an exposure decision.

Next step

What the vendor recommends

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)

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Timeline

When this advisory changed

  1. Published by Ubuntu

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2025-38724View CVSS, KEV, EPSS, and threat contextCVE-2026-53131View CVSS, KEV, EPSS, and threat contextCVE-2026-53221View CVSS, KEV, EPSS, and threat context
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