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CVE-2026-98114

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ksmbd: propagate DACL parsing errors parse_dacl() silently accepts truncated ACEs and allocation failures, allowing set_info_se…

Published Sep 25, 2026linuxCWE-252EPSS 0.12%

Overview

CVE-2026-98114 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 25, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: propagate DACL parsing errors

parse_dacl() silently accepts truncated ACEs and allocation failures,

allowing set_info_sec() to continue with an incomplete ACL conversion.

Return parsing and allocation errors to parse_sec_desc() so malformed

security descriptors are rejected before inode attributes or ACL xattrs

are updated.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 5.15, < 6.6.160Affected

References

Refgit.kernel.org/stable/c/37952f03d5171eb3a33b2abc2cf6e456d69ff4a1Refgit.kernel.org/stable/c/461f10a5297e85b7c1cd21838922f2e57b934d2dRefgit.kernel.org/stable/c/99ae165acf633b13df34105815110fec332a2cdcRefgit.kernel.org/stable/c/a04dac1f2cffe9533f4260f0659297d805e69194Refgit.kernel.org/stable/c/c61dc7b1b4a3234b4aa3965502908a292238805c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-98114?

CVE-2026-98114 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 25, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-98114?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-98114?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-98114?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98114 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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