Is CVE-2026-31520 actively exploited?

CVE-2026-31520 has no public evidence of in-the-wild exploitation as of 2026-04-28.

What is the CVSS score for CVE-2026-31520?

CVE-2026-31520 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2026-31520?

Patch guidance is available from linux security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-31520.

CVE-2026-31520 - remediation guidance & executive summary

Q: Which products are affected by CVE-2026-31520?

7 products: linux linux kernel, linux linux kernel, linux linux kernel, linux linux kernel, linux linux kernel, and 2 more.

Description

In the Linux kernel, the following vulnerability has been resolved: HID: apple: avoid memory leak in apple_report_fixup() The apple_report_fixup() function was returning a newly kmemdup()-allocated buffer, but never freeing it. The caller of report_fixup() does not take ownership of the returned pointer, but it *is* permitted to return a sub-portion of the input rdesc, whose lifetime is managed by the caller.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-401

Metadata

Primary Vendor: LINUX
Published: 4/22/2026
Last Modified: 4/28/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

linux : linux_kernellinux : linux_kernellinux : linux_kernellinux : linux_kernellinux : linux_kernellinux : linux_kernellinux : linux_kernel

Remediation Guidance

Executive Summary

View on NIST NVD