# Multiple Linux kernel flaws in Ubuntu require patching

Published: 2026-09-18 · Severity: routine
Canonical: https://vorant.io/reports/b6c557f2-4894-5022-8b9f-20d4d2fa38db/multiple-linux-kernel-flaws-in-ubuntu-require-patching

> Multiple vulnerabilities in Ubuntu kernel allow unspecified security issues; patches available via USN bulletins.

CERT-FR has published an advisory covering multiple vulnerabilities affecting the Linux kernel across multiple Ubuntu releases: 16.04 ESM, 18.04 ESM, 20.04 ESM, 22.04 LTS, 24.04 LTS, and 26.04 LTS. The vulnerabilities allow attackers to cause unspecified security problems. Ubuntu has released security updates across 11 USN bulletins (USN-8730-2, USN-8760-1, USN-8761-1, USN-8714-3, USN-8715-2, USN-8725-2, USN-8726-2, USN-8729-2, USN-8730-3, USN-8761-2, USN-8781-1) issued in September 2026. Defenders should apply the relevant kernel updates for their Ubuntu versions immediately.

## Mentioned in this report

- Vulnerabilities: CVE-2021-47378, CVE-2022-50401, CVE-2024-14040, CVE-2024-35948, CVE-2024-41008, CVE-2024-43872, CVE-2024-44932, CVE-2024-44964, CVE-2024-49932, CVE-2024-49940, CVE-2024-50106, CVE-2024-50217, CVE-2024-52560, CVE-2024-53098, CVE-2024-56552, CVE-2024-56591, CVE-2024-57857, CVE-2024-58089, CVE-2024-58094, CVE-2024-58098, CVE-2024-58100, CVE-2024-58241, CVE-2025-10263, CVE-2025-21687, CVE-2025-21693, CVE-2025-21984, CVE-2025-21985, CVE-2025-22104, CVE-2025-22108, CVE-2025-22109, CVE-2025-23132, CVE-2025-27558, CVE-2025-37776, CVE-2025-37876, CVE-2025-37906, CVE-2025-38064, CVE-2025-38069, CVE-2025-38187, CVE-2025-38204, CVE-2025-38206

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1203

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