CVE-2026-80718
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
- Bitmap overflow in pcpu_create_chunk() leads to incorrect percpu memory accounting.
- Who is affected
- All Linux kernel systems using percpu memory management.
- Urgency
- Medium severity; potential memory corruption without active exploitation reported.
- Action
- Apply kernel update addressing bitmap overflow in percpu-km.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-80718
Get an email if CVE-2026-80718 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Advisory coverage (3)
- unknownMultiples vulnérabilités dans le noyau Linux de Debian LTS (11 septembre 2026)cert-fr-avis · 2026-09-11
- highCVE-2026-80718: In the Linux kernel, the following vulnerability has been resolved: mm/percpu-km: fix bitmap o…nvd · 2026-08-28
- mediumCVE-2026-80718: mm/percpu-km: fix bitmap overflow and accounting in pcpu_create_chunk()msrc · 2026-08-11
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-80718)