# CERT-FR Flags Mass Debian LTS Kernel Flaws

Published: 2026-10-09 · Severity: routine
Canonical: https://vorant.io/reports/c2be340b-da32-558a-a4df-0e894457122f/cert-fr-flags-mass-debian-lts-kernel-flaws

> CERT-FR advisory covers hundreds of Linux kernel vulnerabilities in Debian 12 LTS bookworm before 6.12.111-1~deb12u1, enabling privilege escalation, info disclosure, or DoS.

CERT-FR published a bulletin referencing a Debian LTS security announcement that patches an extremely large number of Linux kernel vulnerabilities affecting Debian 12 (bookworm) LTS prior to version 6.12.111-1~deb12u1. The advisory lists hundreds of CVE identifiers, reflecting an accumulated kernel update that bundles fixes across many subsystems rather than a single targeted flaw. Collectively, the issues can lead to local privilege escalation, disclosure of sensitive kernel memory/data, and denial of service conditions.

No in-the-wild exploitation is mentioned in the advisory; this is a routine (if unusually large) LTS kernel update bulletin. Given the sheer scale of the CVE list, it is unlikely CERT-FR or Debian performed individual severity triage on each item within this notice — defenders should treat this as a mandatory patch cycle rather than a targeted incident.

Defenders running Debian 12 bookworm LTS should prioritize updating the kernel package to 6.12.111-1~deb12u1 or later as published in the referenced Debian LTS announcement (msg00009, 4 October 2026). Because the bulletin aggregates an exceptionally high volume of kernel CVEs spanning multiple subsystems (drivers, filesystems, networking, etc.), full enumeration is impractical here — organizations should pull the complete CVE list from the Debian source and cross-reference against their kernel version and enabled modules to assess exposure, especially for privilege-escalation-class bugs on multi-user or shared systems.

## Mentioned in this report

- Vulnerabilities: CVE-2024-52560, CVE-2024-58094, CVE-2024-58095, CVE-2025-21817, CVE-2025-22104, CVE-2025-22108, CVE-2025-22127, CVE-2025-38203, CVE-2025-38205, CVE-2025-38206, CVE-2025-38237, CVE-2025-38621, CVE-2025-39833, CVE-2025-39925, CVE-2025-40064, CVE-2025-40102, CVE-2025-40139, CVE-2025-40168, CVE-2026-100070, CVE-2026-100071, CVE-2026-100075, CVE-2026-100078, CVE-2026-100079, CVE-2026-23137, CVE-2026-43198, CVE-2026-43344, CVE-2026-45963, CVE-2026-52944, CVE-2026-53010, CVE-2026-53089, CVE-2026-53102, CVE-2026-53113, CVE-2026-53250, CVE-2026-53313, CVE-2026-64058, CVE-2026-64070, CVE-2026-64082, CVE-2026-64210, CVE-2026-68286, CVE-2026-68287

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1289

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