# Multiple Linux kernel flaws in Debian LTS releases

Published: 2026-07-10 · Severity: routine
Canonical: https://vorant.io/reports/74d7a074-f9ef-5251-8033-fa322210178e/multiple-linux-kernel-flaws-in-debian-lts-releases

> Debian LTS kernels contain multiple vulnerabilities allowing privilege escalation, data disclosure, and denial of service.

CERT-FR has published a security advisory covering multiple vulnerabilities discovered in the Linux kernel across Debian LTS and current releases. The affected versions include Debian bookworm (before 6.1.176), bullseye (before 5.10.259 and 6.6.1.176.95-1), and trixie (before 6.12.95-1). These vulnerabilities span a range of impacts including privilege escalation, confidentiality breaches, and denial of service. The advisory references over 200 CVE identifiers dating from 2021 through 2026, indicating a cumulative patching effort addressing kernel subsystem issues. Debian has released kernel updates through their security and LTS announcement channels; administrators running affected versions should apply the published patches immediately.

## Mentioned in this report

- Vulnerabilities: CVE-2021-47188, CVE-2021-47211, CVE-2022-48703, CVE-2022-49135, CVE-2022-49158, CVE-2022-49183, CVE-2022-49822, CVE-2022-50073, CVE-2022-50472, CVE-2022-50493, CVE-2022-50552, CVE-2023-53133, CVE-2023-53292, CVE-2023-53421, CVE-2023-53596, CVE-2023-53989, CVE-2023-54125, CVE-2023-54129, CVE-2023-54271, CVE-2023-54322, CVE-2024-27012, CVE-2024-36922, CVE-2024-43902, CVE-2024-53221, CVE-2024-56657, CVE-2025-10263, CVE-2025-21739, CVE-2025-21863, CVE-2025-22026, CVE-2025-22105, CVE-2025-22107, CVE-2025-23131, CVE-2025-37864, CVE-2025-38129, CVE-2025-38250, CVE-2025-38584, CVE-2025-38627, CVE-2025-38710, CVE-2025-39929, CVE-2025-39997

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0862

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