CVE-2026-98164 Vulnerability Analysis & Exploit Details

CVE-2026-98164
Vulnerability Scoring

Analysis In Progress
Analysis In Progress

Attack Complexity Details

  • Attack Complexity:
    Attack Complexity Analysis In Progress
  • Attack Vector:
    Attack Vector Under Analysis
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-98164 Details

Status: Received on 29 Sep 2026, 13:17 UTC

Published on: 29 Sep 2026, 13:17 UTC

CVSS Release:

CVE-2026-98164 Vulnerability Summary

CVE-2026-98164: In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvm_gfn_is_write_tracked() checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can therefore be write-tracked in one address space and appear untracked through the other. Check the supplied slot first, then the slot for the other address space. This ensures all callers honor write tracking regardless of the active address space. In particular, it prevents mmu_try_to_unsync_pages() from marking an upper-level shadow page unsync and eventually triggering the BUG in pte_list_remove(). [invert direction of the conditional. - Paolo]

Assessing the Risk of CVE-2026-98164

Access Complexity Graph

The exploitability of CVE-2026-98164 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-98164

No exploitability data is available for CVE-2026-98164.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-98164, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-98164, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-98164 does not compromise confidentiality.
  • Integrity: None
    CVE-2026-98164 does not impact data integrity.
  • Availability: None
    CVE-2026-98164 does not affect system availability.

CVE-2026-98164 References

External References

CWE Common Weakness Enumeration

Unknown

Protect Your Infrastructure against CVE-2026-98164: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2026-97395 – Apache Polaris allows an authenticated principal with permission to create or update Iceberg table properties to set FileIO client settings such as...
  • CVE-2026-86450 – Insertion of sensitive information into sent data vulnerability in Parla Auto Automotive Trading Limited Company DetaWix Mobile Web Portal allows A...
  • CVE-2026-81569 – An improper authorization vulnerability exists in the handling of sub-workflow tasks. An authenticated user who does not have permission to access ...
  • CVE-2026-78214 – An authentication bypass vulnerability exists in the protection of Actuator endpoints. The application determines whether authentication is require...
  • CVE-2026-71899 – A missing authorization vulnerability exists in the `query-dynamic-sub-workflows` API of Apache DolphinScheduler. The API does not properly verify ...