Linux Kernel Elevation of Privilege Vulnerability
Published October 13, 2026Updated October 13, 2026
Source data
Overview
Time-of-check time-of-use (toctou) race condition in Linux Kernel allows an authorized attacker to elevate privileges locally.
Impact & technical details
Elevation of Privilege
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
What do I have to do to protect myself from this vulnerability? To help protect your systems from this vulnerability, update your Linux kernel to a version that includes the upstream fix for this issue. The fix has already been accepted upstream and will be included in newer kernel releases. If your environment uses a Linux distribution that has not yet incorporated the updated kernel version, you should monitor your distribution vendor’s security advisories and apply the appropriate security update as soon as it becomes available. Some distributions may release the fix immediately through security updates, while others may include it in a future kernel package or maintenance release. Organizations that maintain custom kernels or remain on older kernel branches may need to manually backport or apply the upstream patch according to their standard patch management and validation processes. As a general best practice, ensure systems are regularly updated with the latest security patches and kernel releases provided by your operating system vendor.
- CVSS base score
- Not supplied
Affected products
- Linux 3P (Third Party) Distros
Source guidance
Remediation
- Release Notes
Patch availability is not confirmed by this dataset. Consult the vendor before selecting a remediation.
GTP recommendation · Rule-based guidance
Recommended next step
Review affected Microsoft products and apply the applicable security updates through your organization's normal patch-management process. Confirm availability and prerequisites in the Microsoft advisory.
Authoritative sources & updates
Findings and update information come from the linked publishers. GTP compiles the public record and provides the recommendation above. CVSS ratings shown here come from Microsoft. NVD references provide additional public context.
Managed by GTP?
Griffin Technology Partners managed customers may receive additional environment-specific security guidance and remediation assistance through their managed services relationship.
Security bulletins are provided for informational purposes and compiled from authoritative public sources. Vulnerability applicability varies by environment. Validate affected products, configuration, compatibility requirements, and vendor guidance before making production changes.