CVE-2026-63827
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
- A use-after-free vulnerability exists in the rawdata deduplication loop.
- Who is affected
- Deployments of apparmor are affected.
- Urgency
- Remediation is critical as use-after-free vulnerabilities can lead to exploitation.
- Action
- Apply the latest patches to address the vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.12% 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-2026-63827: In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-fr…nvd · 2026-07-19
- criticalCVE-2026-63827: apparmor: fix use-after-free in rawdata dedup loopmsrc · 2026-07-14
External references
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[](https://www.csirts.com/cve/CVE-2026-63827)