CVE-2026-63817
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian LTS. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un déni de service.
CSIRTS triage
- What
- The f2fs file system does not validate compress cache inode when it is enabled.
- Who is affected
- Deployments of the Linux kernel using f2fs.
- Urgency
- Remediation is necessary to prevent potential issues with file system integrity.
- Action
- Update to the latest kernel version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (3)
- unknownMultiples vulnérabilités dans le noyau Linux de Debian LTS (31 juillet 2026)cert-fr-avis · 2026-07-31
- highCVE-2026-63817: In the Linux kernel, the following vulnerability has been resolved: f2fs: validate compress ca…nvd · 2026-07-19
- highCVE-2026-63817: f2fs: validate compress cache inode only when enabledmsrc · 2026-07-14
External references
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