CVE-2026-63816
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. https://security-tracker.debian.org/tracker/DSA-6393-1
CSIRTS triage
- What
- Several vulnerabilities have been discovered in the Linux kernel that may lead to privilege escalation, denial of service, or information leaks.
- Who is affected
- Deployments of the Linux kernel are affected by these vulnerabilities.
- Urgency
- Remediation is urgent due to the potential for privilege escalation and denial of service.
- Action
- Apply the latest security update to mitigate these vulnerabilities.
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 2% of all EPSS-scored CVEs.
Advisory coverage (4)
- unknownMultiple vulnerabilities in Debian Linux kernel (July 24, 2026)cert-fr-avis · 2026-07-24
- unknownDSA-6393-1 linux - security updatedebian · 2026-07-21
- highCVE-2026-63816: In the Linux kernel, the following vulnerability has been resolved: f2fs: atomic: fix UAF issu…nvd · 2026-07-19
- criticalCVE-2026-63816: f2fs: atomic: fix UAF issue on f2fs_inode_info.atomic_inodemsrc · 2026-07-14
External references
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