CVE-2026-64227
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-6405-1
CSIRTS triage
- What
- Vulnerabilities in the Linux kernel could allow local attackers to escalate privileges.
- Who is affected
- Users of the Linux kernel, especially on affected AMD processors, are at risk.
- Urgency
- Remediation is important due to the high severity of the vulnerabilities.
- Action
- Apply the latest updates for the Linux kernel.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Advisory coverage (5)
- medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-07-31
- unknownDSA-6405-1 linux - security updatedebian · 2026-07-31
- highUSN-8618-1: Linux kernel vulnerabilitiesubuntu · 2026-07-28
- unknownCVE-2026-64227: In the Linux kernel, the following vulnerability has been resolved: ACPI: driver: Check ACPI_C…nvd · 2026-07-24
- highCVE-2026-64227: ACPI: driver: Check ACPI_COMPANION() against NULL during probemsrc · 2026-07-14
External references
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