CVE-2026-97445 Linux CVE debrief

Who should care

Defenders responsible for Linux kernel systems, especially those with ACPICA components, should assess exposure and prioritize patching to prevent potential buffer overflow attacks.

Why it matters

A high-severity vulnerability has been resolved in the Linux kernel, affecting the ACPICA component. Defenders should prioritize verifying and applying patches to prevent potential buffer overflow attacks.

• Verify and apply patches to prevent buffer overflow attacks.
• Review system configurations and inventory to identify potential exposure.
• Monitor system logs for suspicious activity related to ACPICA components.

Technical summary

The Linux kernel vulnerability (CVE-2026-97445) enhances buffer validation in acpi_ut_walk_aml_resources() to prevent buffer overflows. The vulnerability has a CVSS score of 7.7 and is considered high-severity. This change aims to improve the security of Linux kernel systems, especially those with ACPICA components, by preventing potential buffer overflow attacks. The vulnerability affects the ACPICA component of the Linux kernel, and defenders should prioritize verifying and applying patches to prevent potential buffer overflow attacks.

Defensive priority

Defenders should prioritize verifying and applying patches for Linux kernel systems, especially those with ACPICA components, to prevent potential buffer overflow attacks.

Recommended defensive actions

• Verify and apply patches for Linux kernel systems, especially those with ACPICA components.
• Review system configurations and inventory to identify potential exposure.
• Monitor system logs for suspicious activity related to ACPICA components.
• Perform vulnerability scanning to identify potentially affected systems.
• Implement compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Review and update incident response plans to include procedures for handling potential buffer overflow attacks.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but the scope of affected systems and versions is not explicitly stated. Further verification is needed to determine the extent of the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.